ci(release): auto-release engine (conventional commits) for the APK

Replace the tag-triggered release.yml with link/'s language-agnostic release
engine, adapted for Android. On every push to main it derives the next version
from conventional-commit subjects since the last v* tag (feat!/BREAKING -> major,
feat -> minor, fix|perf -> patch; nothing releasable -> no release), generates a
grouped changelog, bumps versionName in build.gradle.kts (versionCode derived
major*10000+minor*100+patch, monotonic), builds the SIGNED release APK, then
commits the bump [skip ci], tags vX.Y.Z, and creates the Gitea release with the
notes + APK + SHA256SUMS.

Uses REGISTRY_USER/REGISTRY_TOKEN (write:repository) to push the bump + create
the release, matching link/. main must allow that account to push (bump lands on
main; the [skip ci] + head-commit guard prevent a re-trigger loop). Signing
secrets (ANDROID_KEYSTORE_BASE64/_PASSWORD, ANDROID_KEY_ALIAS/_PASSWORD) unchanged.
Same self-hosted-runner handling as pr-checks.yml (apt JDK 17, sdkmanager, chmod).

Co-Authored-By: Claude <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -0,0 +1,269 @@
+# Automated build + release for the Runic Gateway Android app.
+#
+# Trigger: every push to `main` (i.e. every merged PR).
+#
+# Flow (two conceptual halves, kept separate on purpose) — mirrors link/'s engine:
+#
+#   ┌── RELEASE ENGINE (language-agnostic) ─────────────────────────────┐
+#   │  reads: latest v* git tag + conventional-commit subjects          │
+#   │  produces: next version, changelog, and (at the end) the release  │
+#   └───────────────────────────────────────────────────────────────────┘
+#   ┌── ANDROID ADAPTER (the only Android-specific part) ───────────────┐
+#   │  consumes: the version                                            │
+#   │  produces: the artifact (a signed release APK + SHA256SUMS)       │
+#   └───────────────────────────────────────────────────────────────────┘
+#
+# Version bump (conventional commits since the last v* tag):
+#   feat!: / BREAKING CHANGE  -> major     feat: -> minor     fix|perf: -> patch
+#   nothing releasable        -> no release is cut
+#   (first ever run, no tag)  -> releases the current build.gradle.kts version as-is
+# versionName is the semver; versionCode is derived major*10000+minor*100+patch so
+# it is deterministic + monotonic (PLAN.md §10). The bump is committed back to
+# app/build.gradle.kts, then tagged.
+#
+# Prerequisites (Settings -> Actions -> Secrets on RunicGateway/Android-app):
+#   REGISTRY_USER   — Gitea username the token below belongs to
+#   REGISTRY_TOKEN  — Gitea access token with `write:repository` (push the bump
+#                     commit + tag and create the release)
+#   ANDROID_KEYSTORE_BASE64    — base64 of the release .jks (single line)
+#   ANDROID_KEYSTORE_PASSWORD  — keystore password
+#   ANDROID_KEY_ALIAS          — key alias (e.g. runicgateway)
+#   ANDROID_KEY_PASSWORD       — key password (== store password for a PKCS12 keystore)
+#   Also: `main` must accept a direct push from the REGISTRY_USER account (disable
+#   branch protection for it, or add it as an exception) — the bump commit lands on
+#   main. The bump commit carries `[skip ci]`, so it does not re-trigger this workflow.
+#
+# Runner handling matches pr-checks.yml (self-hosted `ubuntu-latest`): the container
+# lacks git/curl/unzip and can't reach api.adoptium.net, so we apt-install the base
+# tools + JDK 17 (not actions/setup-java), install the exact SDK packages, and
+# `chmod +x ./gradlew` in-step (checkout drops the exec bit).
+
+name: Release APK
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch: {}
+
+concurrency:
+  group: release-apk
+  cancel-in-progress: false
+
+env:
+  GITEA_HOST: gitea.whitlocktech.com
+  REPO: RunicGateway/Android-app
+  GRADLE_MODULE: app
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    # Don't loop on our own bump commit (belt-and-suspenders with [skip ci]).
+    # Quoted because the expression contains a colon (`chore(release):`), which an
+    # unquoted YAML scalar would misparse as a mapping value.
+    if: "${{ !contains(github.event.head_commit.message, 'chore(release): bump version') }}"
+    steps:
+      - name: Install base tools + JDK 17
+        run: |
+          apt-get update
+          apt-get install -y git curl unzip jq openjdk-17-jdk-headless
+          echo "JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64" >> "$GITHUB_ENV"
+
+      - name: Check out full history (need tags + commit log for the bump)
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      # ── RELEASE ENGINE: decide the next version + changelog ──────────────
+      - name: Plan the release (version + changelog)
+        id: plan
+        run: |
+          set -euo pipefail
+          mkdir -p dist
+          git fetch --tags --force >/dev/null 2>&1 || true
+
+          # Current committed version (the `?: "x.y.z"` default in build.gradle.kts).
+          MANIFEST_VERSION="$(sed -nE 's/.*\?: "([0-9]+\.[0-9]+\.[0-9]+)".*/\1/p' "${GRADLE_MODULE}/build.gradle.kts" | head -1)"
+          LAST_TAG="$(git describe --tags --match 'v*' --abbrev=0 2>/dev/null || true)"
+          if [ -n "$LAST_TAG" ]; then RANGE="${LAST_TAG}..HEAD"; else RANGE="HEAD"; fi
+
+          SUBJECTS="$(git log --no-merges --format='%s' $RANGE || true)"
+          BODIES="$(git log --no-merges --format='%B' $RANGE || true)"
+
+          BUMP=none
+          if echo "$BODIES"   | grep -qE 'BREAKING[ -]CHANGE'          ; then BUMP=major; fi
+          if echo "$SUBJECTS" | grep -qE '^[a-z]+(\([^)]+\))?!:'       ; then BUMP=major; fi
+          if [ "$BUMP" = none ] && echo "$SUBJECTS" | grep -qE '^feat(\([^)]+\))?:'      ; then BUMP=minor; fi
+          if [ "$BUMP" = none ] && echo "$SUBJECTS" | grep -qE '^(fix|perf)(\([^)]+\))?:'; then BUMP=patch; fi
+
+          bump() { # <x.y.z> <major|minor|patch> -> bumped
+            IFS=. read -r MA MI PA <<< "$1"
+            case "$2" in
+              major) echo "$((MA+1)).0.0" ;;
+              minor) echo "${MA}.$((MI+1)).0" ;;
+              patch) echo "${MA}.${MI}.$((PA+1))" ;;
+            esac
+          }
+
+          RELEASE=true
+          if [ -z "$LAST_TAG" ]; then
+            VERSION="$MANIFEST_VERSION"              # first release: ship what's committed
+          elif [ "$BUMP" = none ]; then
+            RELEASE=false                            # no feat/fix/breaking since last tag
+            VERSION="${LAST_TAG#v}"
+          else
+            VERSION="$(bump "${LAST_TAG#v}" "$BUMP")"
+          fi
+
+          if git rev-parse -q --verify "refs/tags/v${VERSION}" >/dev/null; then
+            echo "Tag v${VERSION} already exists — nothing to release."
+            RELEASE=false
+          fi
+
+          # Derive a deterministic, monotonic versionCode from the semver.
+          IFS=. read -r MA MI PA <<< "$VERSION"
+          VERSION_CODE=$(( MA*10000 + MI*100 + PA ))
+
+          {
+            echo "## Runic Gateway Android v${VERSION}"
+            echo
+            FEATS="$(echo "$SUBJECTS" | grep -E '^feat'        || true)"
+            FIXES="$(echo "$SUBJECTS" | grep -E '^(fix|perf)'  || true)"
+            [ -n "$FEATS" ] && { echo "### Features";  echo "$FEATS" | sed 's/^/- /'; echo; }
+            [ -n "$FIXES" ] && { echo "### Fixes";     echo "$FIXES" | sed 's/^/- /'; echo; }
+            echo "### All changes"
+            if [ -n "$LAST_TAG" ]; then echo "Since ${LAST_TAG}:"; fi
+            echo "$SUBJECTS" | sed 's/^/- /'
+            echo
+            echo "---"
+            echo "Signed APK — sideload on Android 10+ (§10). The app self-configures its shard site on first run."
+          } > dist/CHANGELOG.md
+
+          echo "version=${VERSION}"          >> "$GITHUB_OUTPUT"
+          echo "versionCode=${VERSION_CODE}" >> "$GITHUB_OUTPUT"
+          echo "tag=v${VERSION}"             >> "$GITHUB_OUTPUT"
+          echo "release=${RELEASE}"          >> "$GITHUB_OUTPUT"
+          echo "bump=${BUMP}"                >> "$GITHUB_OUTPUT"
+          echo "==> release=${RELEASE} version=${VERSION} code=${VERSION_CODE} bump=${BUMP} last_tag=${LAST_TAG:-<none>}"
+
+      # ── ANDROID ADAPTER: SDK + signing keystore ──────────────────────────
+      - name: Set up Android SDK
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        uses: android-actions/setup-android@v3
+
+      - name: Install Android SDK packages
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        run: |
+          set +o pipefail
+          yes | sdkmanager "platform-tools" "platforms;android-35" "build-tools;35.0.0"
+
+      - name: Cache Gradle
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle.kts', 'gradle/libs.versions.toml', 'gradle/wrapper/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-
+
+      - name: Decode signing keystore
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        env:
+          ANDROID_KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
+        run: |
+          set -euo pipefail
+          if [ -z "${ANDROID_KEYSTORE_BASE64:-}" ]; then
+            echo "::error::ANDROID_KEYSTORE_BASE64 secret is not set — cannot build a signed release."
+            exit 1
+          fi
+          printf '%s' "$ANDROID_KEYSTORE_BASE64" | base64 -d > "${RUNNER_TEMP}/release.jks"
+          echo "ANDROID_KEYSTORE_FILE=${RUNNER_TEMP}/release.jks" >> "$GITHUB_ENV"
+
+      # ── ANDROID ADAPTER: set the version, gate, build the signed APK ─────
+      - name: Set the app version to match the release
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        run: |
+          set -euo pipefail
+          VERSION="${{ steps.plan.outputs.version }}"
+          VERSION_CODE="${{ steps.plan.outputs.versionCode }}"
+          # Replace only the version defaults (the `?: "x.y.z"` / `?: N` fallbacks).
+          sed -i -E "s/(\?: )\"[0-9]+\.[0-9]+\.[0-9]+\"/\1\"${VERSION}\"/" "${GRADLE_MODULE}/build.gradle.kts"
+          sed -i -E "s/(toIntOrNull\(\) \?: )[0-9]+/\1${VERSION_CODE}/"     "${GRADLE_MODULE}/build.gradle.kts"
+          grep -nE "versionCode = |versionName = " "${GRADLE_MODULE}/build.gradle.kts"
+
+      - name: Unit tests + signed release APK
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        env:
+          ANDROID_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+          ANDROID_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+          ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
+        run: |
+          set -euo pipefail
+          chmod +x ./gradlew
+          ./gradlew --no-daemon :${GRADLE_MODULE}:testDebugUnitTest :${GRADLE_MODULE}:assembleRelease
+
+      - name: Package APK + SHA256SUMS
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        run: |
+          set -euo pipefail
+          SRC="${GRADLE_MODULE}/build/outputs/apk/release/app-release.apk"
+          test -f "$SRC" || { echo "::error::release APK not found at $SRC"; exit 1; }
+          cp "$SRC" "dist/runic-gateway-${{ steps.plan.outputs.version }}.apk"
+          ( cd dist && sha256sum "runic-gateway-${{ steps.plan.outputs.version }}.apk" > SHA256SUMS )
+          ls -l dist && cat dist/SHA256SUMS
+
+      # ── RELEASE ENGINE: commit the bump, tag, push ───────────────────────
+      - name: Commit version bump and push tag
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        env:
+          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
+          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          set -euo pipefail
+          TAG="${{ steps.plan.outputs.tag }}"
+          # Secrets can arrive with a trailing newline; a stray CR/LF corrupts the
+          # remote URL / auth header. Strip line breaks before use.
+          CI_USER="$(printf '%s' "${REGISTRY_USER}" | tr -d '\r\n')"
+          CI_TOKEN="$(printf '%s' "${REGISTRY_TOKEN}" | tr -d '\r\n')"
+          git config user.name  "android-app-ci"
+          git config user.email "ci@whitlocktech.com"
+          git remote set-url origin \
+            "https://${CI_USER}:${CI_TOKEN}@${GITEA_HOST}/${REPO}.git"
+
+          git add "${GRADLE_MODULE}/build.gradle.kts"
+          if ! git diff --cached --quiet; then
+            git commit -m "chore(release): bump version to ${TAG} [skip ci]"
+            git push origin "HEAD:main"
+          else
+            echo "Version unchanged (first release) — no bump commit needed."
+          fi
+          git tag "${TAG}"
+          git push origin "${TAG}"
+
+      # ── RELEASE ENGINE: create the Gitea release + upload assets ─────────
+      - name: Create Gitea release and upload assets
+        if: ${{ steps.plan.outputs.release == 'true' }}
+        env:
+          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          set -euo pipefail
+          TAG="${{ steps.plan.outputs.tag }}"
+          API="https://${GITEA_HOST}/api/v1/repos/${REPO}"
+          BODY="$(cat dist/CHANGELOG.md)"
+          CI_TOKEN="$(printf '%s' "${REGISTRY_TOKEN}" | tr -d '\r\n')"
+
+          REL_ID="$(curl -sSf -X POST "${API}/releases" \
+            -H "Authorization: token ${CI_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "$(jq -n --arg tag "$TAG" --arg body "$BODY" \
+                   '{tag_name:$tag, name:$tag, body:$body, draft:false, prerelease:false}')" \
+            | jq -r '.id')"
+          echo "Created release ${TAG} (id=${REL_ID})"
+
+          for f in "runic-gateway-${{ steps.plan.outputs.version }}.apk" SHA256SUMS; do
+            curl -sSf -X POST "${API}/releases/${REL_ID}/assets?name=${f}" \
+              -H "Authorization: token ${CI_TOKEN}" \
+              -F "attachment=@dist/${f}" >/dev/null
+            echo "  uploaded ${f}"
+          done

app/build.gradle.kts

@@ -1,5 +1,8 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
+import java.io.FileInputStream
+import java.util.Properties
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
@@ -9,6 +12,25 @@ plugins {
     alias(libs.plugins.hilt)
 }
 
+// Release signing material (PLAN.md §12) is never committed. It is read from, in
+// order of precedence: a local gitignored `keystore.properties` at the repo root,
+// then environment variables (how CI injects the decoded keystore + secrets). When
+// none is present, the release build is simply left unsigned — `assembleDebug` and
+// the PR gate are unaffected, so contributors without the keystore can still build.
+val keystorePropsFile = rootProject.file("keystore.properties")
+val keystoreProps = Properties().apply {
+    if (keystorePropsFile.exists()) FileInputStream(keystorePropsFile).use { load(it) }
+}
+fun signingValue(propKey: String, envKey: String): String? =
+    keystoreProps.getProperty(propKey) ?: System.getenv(envKey)
+
+val ksStoreFilePath = signingValue("storeFile", "ANDROID_KEYSTORE_FILE")
+val ksStorePassword = signingValue("storePassword", "ANDROID_KEYSTORE_PASSWORD")
+val ksKeyAlias = signingValue("keyAlias", "ANDROID_KEY_ALIAS")
+val ksKeyPassword = signingValue("keyPassword", "ANDROID_KEY_PASSWORD")
+val hasReleaseSigning = ksStoreFilePath != null && ksStorePassword != null &&
+    ksKeyAlias != null && ksKeyPassword != null
+
 android {
     namespace = "com.runicgateway.app"
     compileSdk = 35
@@ -18,20 +40,46 @@ android {
         applicationId = "com.runicgateway.app"
         minSdk = 29
         targetSdk = 35
-        versionCode = 1
-        versionName = "0.1.0"
+        // These committed defaults are the version source of truth (PLAN.md §10).
+        // release.yml's conventional-commit engine bumps versionName here and commits
+        // it on release; versionCode is derived from it (major*10000+minor*100+patch)
+        // so it stays monotonic. Both remain overridable via -P for local/manual builds.
+        versionCode = (project.findProperty("versionCode") as String?)?.toIntOrNull() ?: 1
+        versionName = (project.findProperty("versionName") as String?)?.takeIf { it.isNotBlank() } ?: "0.1.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
+    signingConfigs {
+        if (hasReleaseSigning) {
+            create("release") {
+                storeFile = file(ksStoreFilePath!!)
+                storePassword = ksStorePassword
+                keyAlias = ksKeyAlias
+                keyPassword = ksKeyPassword
+                // Sign with both v1 (JAR) and v2 (APK) schemes for broad compatibility.
+                enableV1Signing = true
+                enableV2Signing = true
+            }
+        }
+    }
+
     buildTypes {
         release {
-            // Signing/minification are wired at M6 (release hardening). Debug is auto-signed.
-            isMinifyEnabled = false
+            // R8 full-mode minify + resource shrink (§7: no offline cache, so a lean
+            // release APK). Keep rules live in proguard-rules.pro.
+            isMinifyEnabled = true
+            isShrinkResources = true
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro",
             )
+            // Signed only when the keystore material is present (local or CI); an
+            // unsigned APK is produced otherwise. The direct-APK release (§10) runs
+            // through release.yml, which supplies the keystore from a Gitea secret.
+            if (hasReleaseSigning) {
+                signingConfig = signingConfigs.getByName("release")
+            }
         }
     }
 
@@ -93,6 +141,9 @@ dependencies {
     implementation(libs.androidx.datastore.preferences)
     implementation(libs.androidx.security.crypto)
 
+    // Web hand-off (Chrome Custom Tabs) for register / invite / reset / SSO (§4.2)
+    implementation(libs.androidx.browser)
+
     // Images
     implementation(libs.coil.compose)
 

app/licenses/Cinzel-OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2020 The Cinzel Project Authors (https://github.com/NDISCOVER/Cinzel)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

app/proguard-rules.pro

@@ -1,3 +1,59 @@
-# Runic Gateway Android app — ProGuard/R8 rules.
-# Minification is disabled until M6 (release hardening); real keep rules for
-# kotlinx.serialization DTOs and Retrofit models are added there.
+# Runic Gateway Android app — ProGuard/R8 rules (release minify + resource shrink, M6).
+#
+# The dependency stack ships its own consumer rules that R8 applies automatically:
+# Retrofit 2.11, OkHttp 4.12, kotlinx.serialization 1.7 (core), Hilt/Dagger, Coil 2.7.
+# The rules below are defensive belt-and-suspenders for the areas full-mode R8 is
+# most likely to over-strip in this app: the kotlinx.serialization generated
+# serializers and our own @Serializable wire DTOs.
+
+# ── kotlinx.serialization (canonical keep rules) ────────────────────────────
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.**
+
+# Keep the Companion of @Serializable classes so `.serializer()` resolves.
+-if @kotlinx.serialization.Serializable class **
+-keepclassmembers class <1> {
+    static <1>$Companion Companion;
+}
+-if @kotlinx.serialization.Serializable class ** {
+    static **$Companion Companion;
+}
+-keepclassmembers class <2>$Companion {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+# Keep `INSTANCE.serializer()` of @Serializable objects.
+-if @kotlinx.serialization.Serializable class ** {
+    public static ** INSTANCE;
+}
+-keepclassmembers class <1> {
+    public static <1> INSTANCE;
+    kotlinx.serialization.KSerializer serializer(...);
+}
+# Keep the synthesized $$serializer classes and their descriptor field.
+-keepclassmembers class **$$serializer {
+    *** descriptor;
+}
+
+# ── Our wire DTOs ───────────────────────────────────────────────────────────
+# All request/response models decoded by kotlinx.serialization. Keeping them
+# (and their generated serializers) guarantees additive backend fields and
+# @SerialName mappings survive minification. DTOs are small, so keeping them
+# whole is cheap insurance against a full-mode strip.
+-keep @kotlinx.serialization.Serializable class com.runicgateway.app.** { *; }
+-keepclassmembers class com.runicgateway.app.data.api.dto.** { *; }
+
+# ── Retrofit service interfaces ─────────────────────────────────────────────
+# Retrofit reads method + parameter annotations reflectively; keep our API
+# interfaces' generic signatures so return types (suspend .../Call<T>) resolve.
+-keep,allowobfuscation interface com.runicgateway.app.data.api.*Api
+-keepattributes Signature, Exceptions
+
+# Kotlin metadata is needed for reflection over Kotlin types (serialization/Retrofit).
+-keep class kotlin.Metadata { *; }
+
+# ── Tink / EncryptedSharedPreferences (androidx.security-crypto) ─────────────
+# Tink references Error Prone compile-only annotations that are absent at runtime;
+# they are safe to ignore (they carry no runtime behaviour). Suppresses the R8
+# "Missing class com.google.errorprone.annotations.*" errors.
+-dontwarn com.google.errorprone.annotations.**
+

app/src/main/java/com/runicgateway/app/MainActivity.kt

@@ -3,8 +3,10 @@
  */
 package com.runicgateway.app
 
+import android.graphics.Color
 import android.os.Bundle
 import androidx.activity.ComponentActivity
+import androidx.activity.SystemBarStyle
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.foundation.layout.fillMaxSize
@@ -35,7 +37,10 @@ import dagger.hilt.android.AndroidEntryPoint
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        enableEdgeToEdge()
+        // Dark-only app (M5): force light system-bar icons over the transparent bars so
+        // they stay legible on the deep blue-black surfaces regardless of system theme.
+        val barStyle = SystemBarStyle.dark(Color.TRANSPARENT)
+        enableEdgeToEdge(statusBarStyle = barStyle, navigationBarStyle = barStyle)
         setContent {
             val appViewModel: AppViewModel = hiltViewModel()
             val state by appViewModel.state.collectAsStateWithLifecycle()

app/src/main/java/com/runicgateway/app/core/auth/EncryptedTokenStore.kt

@@ -0,0 +1,73 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.auth
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKey
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * [TokenStore] backed by Jetpack Security's [EncryptedSharedPreferences]
+ * (Tink/AES-256-GCM), so the token pair is encrypted at rest (PLAN.md §2, §4.3).
+ * The base URL stays in plain DataStore ([com.runicgateway.app.core.prefs.ServerPreferences]);
+ * only tokens live here.
+ *
+ * The prefs handle is created lazily so a first-launch device (no session yet)
+ * pays the keystore cost only once a user actually signs in.
+ */
+@Singleton
+class EncryptedTokenStore @Inject constructor(
+    @param:ApplicationContext private val context: Context,
+) : TokenStore {
+
+    private val prefs: SharedPreferences by lazy {
+        val masterKey = MasterKey.Builder(context)
+            .setKeyScheme(MasterKey.KeyScheme.AES256_GCM)
+            .build()
+        EncryptedSharedPreferences.create(
+            context,
+            PREFS_NAME,
+            masterKey,
+            EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+            EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM,
+        )
+    }
+
+    override fun load(): StoredSession? {
+        val access = prefs.getString(KEY_ACCESS, null) ?: return null
+        val refresh = prefs.getString(KEY_REFRESH, null) ?: return null
+        val username = prefs.getString(KEY_USERNAME, null) ?: return null
+        val role = prefs.getString(KEY_ROLE, null) ?: return null
+        val id = prefs.getLong(KEY_USER_ID, -1L)
+        if (id < 0) return null
+        return StoredSession(access, refresh, id, username, role)
+    }
+
+    override fun save(session: StoredSession) {
+        prefs.edit()
+            .putString(KEY_ACCESS, session.accessToken)
+            .putString(KEY_REFRESH, session.refreshToken)
+            .putLong(KEY_USER_ID, session.userId)
+            .putString(KEY_USERNAME, session.username)
+            .putString(KEY_ROLE, session.role)
+            .apply()
+    }
+
+    override fun clear() {
+        prefs.edit().clear().apply()
+    }
+
+    private companion object {
+        const val PREFS_NAME = "runic_session"
+        const val KEY_ACCESS = "access_token"
+        const val KEY_REFRESH = "refresh_token"
+        const val KEY_USER_ID = "user_id"
+        const val KEY_USERNAME = "username"
+        const val KEY_ROLE = "role"
+    }
+}

app/src/main/java/com/runicgateway/app/core/auth/Session.kt

@@ -0,0 +1,60 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.auth
+
+import com.runicgateway.app.data.api.dto.SafeUserDto
+
+/**
+ * The signed-in identity the app carries (PLAN.md §4.3, §5). Role is *advisory*
+ * for menu rendering only — the backend re-checks every gated call, so the app
+ * treats a 403 as authoritative and never assumes access from this value.
+ */
+data class SessionUser(
+    val id: Long,
+    val username: String,
+    val role: Role,
+) {
+    val isPlayer: Boolean get() = role == Role.PLAYER
+}
+
+/**
+ * The account roles the backend issues. The three staff roles are gated by
+ * capability, not rank (PLAN.md §5); [UNKNOWN] absorbs any future role so an
+ * additive backend change never crashes the menu.
+ */
+enum class Role(val wire: String) {
+    PLAYER("player"),
+    MODERATOR("moderator"),
+    EDITOR("editor"),
+    ADMIN("admin"),
+    UNKNOWN("");
+
+    val isStaff: Boolean get() = this == MODERATOR || this == EDITOR || this == ADMIN
+
+    companion object {
+        fun fromWire(value: String?): Role =
+            entries.firstOrNull { it.wire.equals(value, ignoreCase = true) } ?: UNKNOWN
+    }
+}
+
+/** The two auth states the UI observes. */
+sealed interface Session {
+    data object SignedOut : Session
+    data class SignedIn(val user: SessionUser) : Session
+}
+
+internal fun SafeUserDto.toSessionUser(): SessionUser =
+    SessionUser(id = id, username = username, role = Role.fromWire(role))
+
+internal fun SafeUserDto.toStored(accessToken: String, refreshToken: String): StoredSession =
+    StoredSession(
+        accessToken = accessToken,
+        refreshToken = refreshToken,
+        userId = id,
+        username = username,
+        role = role,
+    )
+
+internal fun StoredSession.toSessionUser(): SessionUser =
+    SessionUser(id = userId, username = username, role = Role.fromWire(role))

app/src/main/java/com/runicgateway/app/core/auth/SessionManager.kt

@@ -0,0 +1,99 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.auth
+
+import com.runicgateway.app.data.api.dto.SafeUserDto
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import java.util.concurrent.atomic.AtomicReference
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * The single source of truth for the current session (PLAN.md §4.3). It holds the
+ * in-memory token pair the network layer reads on every call, mirrors the
+ * signed-in identity into an observable [state] the UI + menu react to, and keeps
+ * the encrypted [TokenStore] in sync.
+ *
+ * Threading: [state] and the token holders are read from the UI thread and
+ * written from both coroutines (login/logout) and the OkHttp
+ * [com.runicgateway.app.core.net.TokenAuthenticator] dispatcher thread (silent
+ * refresh), so tokens live in [AtomicReference]s and the mutators are
+ * `@Synchronized` to keep the token pair and [state] consistent with each other.
+ */
+@Singleton
+class SessionManager @Inject constructor(
+    private val store: TokenStore,
+) {
+    private val accessRef = AtomicReference<String?>(null)
+    private val refreshRef = AtomicReference<String?>(null)
+
+    private val _state: MutableStateFlow<Session>
+    val state: StateFlow<Session>
+
+    init {
+        val restored = store.load()
+        if (restored != null) {
+            accessRef.set(restored.accessToken)
+            refreshRef.set(restored.refreshToken)
+            _state = MutableStateFlow(Session.SignedIn(restored.toSessionUser()))
+        } else {
+            _state = MutableStateFlow(Session.SignedOut)
+        }
+        state = _state.asStateFlow()
+    }
+
+    /** The bearer for the current request, or null when signed out. */
+    fun currentAccessToken(): String? = accessRef.get()
+
+    /** The refresh token the authenticator rotates, or null when signed out. */
+    fun currentRefreshToken(): String? = refreshRef.get()
+
+    val isSignedIn: Boolean get() = _state.value is Session.SignedIn
+
+    /** Establish a session from a successful login (§4.1). */
+    @Synchronized
+    fun onSignedIn(accessToken: String, refreshToken: String, user: SafeUserDto) {
+        accessRef.set(accessToken)
+        refreshRef.set(refreshToken)
+        store.save(user.toStored(accessToken, refreshToken))
+        _state.value = Session.SignedIn(user.toSessionUser())
+    }
+
+    /**
+     * Store a rotated token pair after a silent refresh (§4.3). Keeps the current
+     * user; if somehow signed out already, it is a no-op (the refresh raced a
+     * logout and must not resurrect the session).
+     */
+    @Synchronized
+    fun onRefreshed(accessToken: String, refreshToken: String, user: SafeUserDto) {
+        if (_state.value !is Session.SignedIn) return
+        accessRef.set(accessToken)
+        refreshRef.set(refreshToken)
+        store.save(user.toStored(accessToken, refreshToken))
+        // Refresh may carry an updated role — reflect it so the menu stays honest.
+        _state.value = Session.SignedIn(user.toSessionUser())
+    }
+
+    /** Refresh the cached identity from a `/auth/me` re-validation (§4.3). */
+    @Synchronized
+    fun onUserRefreshed(user: SafeUserDto) {
+        val current = _state.value
+        if (current !is Session.SignedIn) return
+        val access = accessRef.get() ?: return
+        val refresh = refreshRef.get() ?: return
+        store.save(user.toStored(access, refresh))
+        _state.value = Session.SignedIn(user.toSessionUser())
+    }
+
+    /** Tear the session down — user logout, dead refresh, or a server switch (§3). */
+    @Synchronized
+    fun onSignedOut() {
+        accessRef.set(null)
+        refreshRef.set(null)
+        store.clear()
+        _state.value = Session.SignedOut
+    }
+}

app/src/main/java/com/runicgateway/app/core/auth/TokenStore.kt

@@ -0,0 +1,31 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.auth
+
+/**
+ * The at-rest home for a signed-in session (PLAN.md §4.3): the access + refresh
+ * tokens plus the cached safe-user. Tokens are sensitive, so the production
+ * implementation stores them in EncryptedSharedPreferences — never plain
+ * DataStore or logs. Kept behind an interface so [SessionManager] is unit-testable
+ * against an in-memory fake.
+ */
+interface TokenStore {
+    /** The persisted session restored on launch, or null when signed out. */
+    fun load(): StoredSession?
+
+    /** Persist (overwrite) the current session atomically. */
+    fun save(session: StoredSession)
+
+    /** Wipe every stored token — sign-out and the Settings → Server hard reset (§3). */
+    fun clear()
+}
+
+/** A persisted session: the token pair and the non-sensitive user it belongs to. */
+data class StoredSession(
+    val accessToken: String,
+    val refreshToken: String,
+    val userId: Long,
+    val username: String,
+    val role: String,
+)

app/src/main/java/com/runicgateway/app/core/net/AuthInterceptor.kt

@@ -0,0 +1,39 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.net
+
+import com.runicgateway.app.core.auth.SessionManager
+import okhttp3.Interceptor
+import okhttp3.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Attaches the current bearer access token to outbound calls (PLAN.md §4.1).
+ * Public endpoints simply carry a token the backend ignores; the credential
+ * endpoints (login/refresh) tag themselves [Http.NO_SESSION_HEADER] and are left
+ * bare so a credential `401` is never mistaken for an expired session. A request
+ * that already set its own Authorization (the authenticator's retry) is untouched.
+ */
+@Singleton
+class AuthInterceptor @Inject constructor(
+    private val sessionManager: SessionManager,
+) : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request = chain.request()
+        if (request.header(Http.NO_SESSION_HEADER) != null) {
+            return chain.proceed(request)
+        }
+        if (request.header(Http.AUTHORIZATION) != null) {
+            return chain.proceed(request)
+        }
+        val token = sessionManager.currentAccessToken()
+            ?: return chain.proceed(request)
+        val authed = request.newBuilder()
+            .header(Http.AUTHORIZATION, Http.bearer(token))
+            .build()
+        return chain.proceed(authed)
+    }
+}

app/src/main/java/com/runicgateway/app/core/net/Http.kt

@@ -0,0 +1,19 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.net
+
+/** Shared HTTP constants for the auth layer (PLAN.md §4). */
+object Http {
+    /**
+     * Marks the credential endpoints (login, refresh) that must run *without* a
+     * bearer and must never trigger the refresh-on-401 [TokenAuthenticator].
+     * [AuthInterceptor] sees it and skips attaching a token; the authenticator
+     * sees it on the failed request and declines to refresh. It is a harmless
+     * unknown header to the backend.
+     */
+    const val NO_SESSION_HEADER = "X-Runic-No-Session"
+    const val AUTHORIZATION = "Authorization"
+
+    fun bearer(token: String): String = "Bearer $token"
+}

app/src/main/java/com/runicgateway/app/core/net/TokenAuthenticator.kt

@@ -0,0 +1,86 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.net
+
+import com.runicgateway.app.core.auth.SessionManager
+import com.runicgateway.app.data.api.AuthRefreshApi
+import com.runicgateway.app.data.api.dto.MobileRefreshRequest
+import okhttp3.Authenticator
+import okhttp3.Request
+import okhttp3.Response
+import okhttp3.Route
+import java.io.IOException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Transparently refreshes an expired access token on a bearer `401` and replays
+ * the request (PLAN.md §4.1, §4.3). Refresh tokens are single-use and rotated, so
+ * this is serialized behind a mutex: concurrent 401s trigger exactly one refresh
+ * and the losers reuse its result. A refresh that comes back `401` means the
+ * session is truly dead → sign out; a network error leaves the session intact so
+ * a later call can retry.
+ *
+ * The refresh call runs on [AuthRefreshApi] (its own bare client with no
+ * authenticator), so it can never recurse back into here.
+ */
+@Singleton
+class TokenAuthenticator @Inject constructor(
+    private val sessionManager: SessionManager,
+    private val refreshApi: AuthRefreshApi,
+) : Authenticator {
+
+    private val lock = Any()
+
+    override fun authenticate(route: Route?, response: Response): Request? {
+        val failed = response.request
+        // Credential endpoints (login/refresh) must never be "refreshed".
+        if (failed.header(Http.NO_SESSION_HEADER) != null) return null
+        // Give up after a single refresh+replay to avoid an auth loop.
+        if (priorResponseCount(response) >= 2) return null
+
+        val attemptedAuth = failed.header(Http.AUTHORIZATION)
+
+        synchronized(lock) {
+            // Another thread may have already refreshed while we waited on the lock.
+            val current = sessionManager.currentAccessToken()
+            if (current != null && Http.bearer(current) != attemptedAuth) {
+                return failed.retryWith(current)
+            }
+
+            val refreshToken = sessionManager.currentRefreshToken()
+                ?: return null // already signed out
+
+            val refreshed = try {
+                refreshApi.refresh(MobileRefreshRequest(refreshToken)).execute()
+            } catch (_: IOException) {
+                // Transient — surface the original 401 but keep the session.
+                return null
+            }
+
+            val body = refreshed.body()
+            if (!refreshed.isSuccessful || body == null) {
+                // The refresh token is dead (401/expired/revoked) → session is over.
+                sessionManager.onSignedOut()
+                return null
+            }
+
+            sessionManager.onRefreshed(body.accessToken, body.refreshToken, body.user)
+            return failed.retryWith(body.accessToken)
+        }
+    }
+
+    private fun Request.retryWith(accessToken: String): Request =
+        newBuilder().header(Http.AUTHORIZATION, Http.bearer(accessToken)).build()
+
+    private fun priorResponseCount(response: Response): Int {
+        var count = 1
+        var prior = response.priorResponse
+        while (prior != null) {
+            count++
+            prior = prior.priorResponse
+        }
+        return count
+    }
+}

app/src/main/java/com/runicgateway/app/core/web/WebHandoff.kt

@@ -0,0 +1,32 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.web
+
+import android.content.ActivityNotFoundException
+import android.content.Context
+import android.net.Uri
+import androidx.browser.customtabs.CustomTabsIntent
+
+/**
+ * Opens the website's own pages in a Chrome Custom Tab (PLAN.md §4.2):
+ * registration, invite acceptance, forgot/reset password, and SSO all stay
+ * website-handled, so the app hands off rather than rebuilding those flows. The
+ * user completes them in the browser and returns to sign in natively (§4.1).
+ */
+object WebHandoff {
+
+    /**
+     * Launch [url] in a Custom Tab. Returns false if no browser could handle it
+     * (extremely rare on Android) so the caller can surface a fallback.
+     */
+    fun open(context: Context, url: String): Boolean = try {
+        CustomTabsIntent.Builder()
+            .setShowTitle(true)
+            .build()
+            .launchUrl(context, Uri.parse(url))
+        true
+    } catch (_: ActivityNotFoundException) {
+        false
+    }
+}

app/src/main/java/com/runicgateway/app/core/web/WebsiteUrls.kt

@@ -0,0 +1,37 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.web
+
+import com.runicgateway.app.core.net.BaseUrlHolder
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Resolves the website's front-end page paths against the configured base URL,
+ * for the Custom-Tab hand-offs (PLAN.md §4.2). These are the React SPA routes
+ * (mirrored from `website/client` `App.jsx`), not API endpoints. Null before a
+ * shard site is configured.
+ */
+@Singleton
+class WebsiteUrls @Inject constructor(
+    private val baseUrlHolder: BaseUrlHolder,
+) {
+    private fun resolve(path: String): String? =
+        baseUrlHolder.current?.resolve(path)?.toString()
+
+    /** Create an account on the website. */
+    fun register(): String? = resolve(REGISTER)
+
+    /** Forgot / reset password (the flow built on the backend before app work, §8). */
+    fun forgotPassword(): String? = resolve(FORGOT)
+
+    /** The website login page — carries the SSO provider buttons (§4.2). */
+    fun login(): String? = resolve(LOGIN)
+
+    private companion object {
+        const val REGISTER = "account/register"
+        const val FORGOT = "account/forgot"
+        const val LOGIN = "account/login"
+    }
+}

app/src/main/java/com/runicgateway/app/data/api/AuthApi.kt

@@ -0,0 +1,40 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api
+
+import com.runicgateway.app.data.api.dto.MeResponse
+import com.runicgateway.app.data.api.dto.MobileLoginRequest
+import com.runicgateway.app.data.api.dto.MobileLogoutRequest
+import com.runicgateway.app.data.api.dto.MobileTokenResponse
+import retrofit2.Response
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.Headers
+import retrofit2.http.POST
+
+/**
+ * The native bearer-auth surface (PLAN.md §4.1). Login and logout run on the main
+ * OkHttp client; [com.runicgateway.app.core.net.AuthInterceptor] attaches the
+ * access token to logout + `/auth/me`, and [com.runicgateway.app.core.net.TokenAuthenticator]
+ * transparently refreshes on a `401`.
+ *
+ * Login is tagged [com.runicgateway.app.core.net.Http.NO_SESSION_HEADER] so it
+ * carries no bearer and a credential `401` (bad password / `totpRequired`) is not
+ * misread as an expired session. It returns a raw [Response] so the caller can
+ * inspect the status and parse the `{ totpRequired }` error body.
+ */
+interface AuthApi {
+
+    // Literal header value required by Retrofit @Headers; matches Http.NO_SESSION_HEADER.
+    @Headers("X-Runic-No-Session: 1")
+    @POST("api/v1/auth/mobile/login")
+    suspend fun login(@Body body: MobileLoginRequest): Response<MobileTokenResponse>
+
+    @POST("api/v1/auth/mobile/logout")
+    suspend fun logout(@Body body: MobileLogoutRequest): Response<Unit>
+
+    /** Current user — the app's authoritative role source, re-validated on resume (§4.3). */
+    @GET("api/v1/auth/me")
+    suspend fun me(): MeResponse
+}

app/src/main/java/com/runicgateway/app/data/api/AuthRefreshApi.kt

@@ -0,0 +1,27 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api
+
+import com.runicgateway.app.data.api.dto.MobileRefreshRequest
+import com.runicgateway.app.data.api.dto.MobileTokenResponse
+import retrofit2.Call
+import retrofit2.http.Body
+import retrofit2.http.Headers
+import retrofit2.http.POST
+
+/**
+ * The token-rotation endpoint, isolated onto its own **bare** OkHttp client
+ * (no auth interceptor, no authenticator) so refreshing can never recurse
+ * through the very [com.runicgateway.app.core.net.TokenAuthenticator] that calls
+ * it (PLAN.md §4.3). It is a blocking [Call] because the authenticator runs on an
+ * OkHttp dispatcher thread, outside any coroutine, and executes it synchronously.
+ *
+ * Tagged `NO_SESSION` so it carries no stale bearer.
+ */
+interface AuthRefreshApi {
+
+    @Headers("X-Runic-No-Session: 1")
+    @POST("api/v1/auth/mobile/refresh")
+    fun refresh(@Body body: MobileRefreshRequest): Call<MobileTokenResponse>
+}

app/src/main/java/com/runicgateway/app/data/api/MeApi.kt

@@ -0,0 +1,55 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api
+
+import com.runicgateway.app.data.api.dto.ChangePasswordRequest
+import com.runicgateway.app.data.api.dto.ChangeUsernameRequest
+import com.runicgateway.app.data.api.dto.LinkedIdentityDto
+import com.runicgateway.app.data.api.dto.PlayerAccountDto
+import com.runicgateway.app.data.api.dto.TotpCodeRequest
+import com.runicgateway.app.data.api.dto.TotpSetupDto
+import com.runicgateway.app.data.api.dto.TotpStateDto
+import com.runicgateway.app.data.api.dto.UsernameResponse
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.HTTP
+import retrofit2.http.PATCH
+import retrofit2.http.POST
+import retrofit2.http.Path
+
+/**
+ * The role-agnostic self-service surface (PLAN.md §6.3, §6.4): account, credential
+ * changes, TOTP enrollment, and linked SSO identities under `/auth/me/account*`.
+ * The app calls these regardless of role and never touches `/admin`. Every call
+ * rides the main client, so [com.runicgateway.app.core.net.AuthInterceptor] attaches
+ * the bearer and [com.runicgateway.app.core.net.TokenAuthenticator] refreshes on 401.
+ */
+interface MeApi {
+
+    @GET("api/v1/auth/me/account")
+    suspend fun getAccount(): PlayerAccountDto
+
+    @PATCH("api/v1/auth/me/account/username")
+    suspend fun changeUsername(@Body body: ChangeUsernameRequest): UsernameResponse
+
+    @PATCH("api/v1/auth/me/account/password")
+    suspend fun changePassword(@Body body: ChangePasswordRequest): Unit
+
+    @POST("api/v1/auth/me/account/totp/setup")
+    suspend fun totpSetup(): TotpSetupDto
+
+    @POST("api/v1/auth/me/account/totp/enable")
+    suspend fun totpEnable(@Body body: TotpCodeRequest): TotpStateDto
+
+    @POST("api/v1/auth/me/account/totp/disable")
+    suspend fun totpDisable(@Body body: TotpCodeRequest): TotpStateDto
+
+    @GET("api/v1/auth/me/account/identities")
+    suspend fun identities(): List<LinkedIdentityDto>
+
+    // DELETE with no body — a plain @DELETE would suffice, but @HTTP keeps the
+    // path template explicit alongside the provider argument.
+    @HTTP(method = "DELETE", path = "api/v1/auth/me/account/identities/{provider}")
+    suspend fun unlinkIdentity(@Path("provider") provider: String): Unit
+}

app/src/main/java/com/runicgateway/app/data/api/PlayerShardApi.kt

@@ -0,0 +1,59 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api
+
+import com.runicgateway.app.data.api.dto.CharProfileDto
+import com.runicgateway.app.data.api.dto.CreateGameAccountRequest
+import com.runicgateway.app.data.api.dto.PlayerHouseDto
+import com.runicgateway.app.data.api.dto.RosterDto
+import com.runicgateway.app.data.api.dto.ShardLinkDto
+import com.runicgateway.app.data.api.dto.ShardLinkRequest
+import com.runicgateway.app.data.api.dto.ShardLinkResultDto
+import com.runicgateway.app.data.api.dto.VendorSaleDto
+import com.runicgateway.app.data.api.dto.VendorSnapshotDto
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.POST
+import retrofit2.http.Path
+
+/**
+ * A player's own game data + game-account linking (PLAN.md §6.3), over the
+ * bearer-gated `/player/shard/…` surface. Every read is ownership-checked
+ * server-side; a `503` means the shard/sidecar is down → the UI renders "offline,
+ * retry" (§7). All reads ride the main authed client (bearer + refresh-on-401).
+ */
+interface PlayerShardApi {
+
+    /** Confirm an in-game `[link` one-time code, tagging the game account to the user. */
+    @POST("api/v1/player/shard/link")
+    suspend fun link(@Body body: ShardLinkRequest): ShardLinkResultDto
+
+    /** Provision a game account (hybrid signup) and auto-link it to the caller. */
+    @POST("api/v1/player/shard/account")
+    suspend fun createAccount(@Body body: CreateGameAccountRequest): ShardLinkResultDto
+
+    /** The caller's linked game accounts. */
+    @GET("api/v1/player/shard/accounts")
+    suspend fun accounts(): List<ShardLinkDto>
+
+    /** Character roster for a linked account. */
+    @GET("api/v1/player/shard/roster/{account}")
+    suspend fun roster(@Path("account") account: String): RosterDto
+
+    /** A character sheet — only for a character on the caller's linked account. */
+    @GET("api/v1/player/shard/char/{serial}")
+    suspend fun char(@Path("serial") serial: String): CharProfileDto
+
+    /** Player vendors for a linked account. */
+    @GET("api/v1/player/shard/vendors/{account}")
+    suspend fun vendors(@Path("account") account: String): VendorSnapshotDto
+
+    /** Recent player-vendor sales across the caller's linked accounts. */
+    @GET("api/v1/player/shard/sales")
+    suspend fun sales(): List<VendorSaleDto>
+
+    /** The caller's own houses (home/decay status). */
+    @GET("api/v1/player/shard/houses")
+    suspend fun houses(): List<PlayerHouseDto>
+}

app/src/main/java/com/runicgateway/app/data/api/dto/AccountDto.kt

@@ -0,0 +1,68 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.Serializable
+
+/**
+ * The role-agnostic self-service ("me") wire shapes (PLAN.md §6.3, §6.4). Field
+ * names match the backend's `account.controller` handlers exactly, surfaced for
+ * the app under `/auth/me/account*`. Every DTO ignores unknown keys (NetworkModule's
+ * lenient Json), so additive backend fields are safe (recorded for M1).
+ */
+
+/** `GET /auth/me/account` — the current account (any role). */
+@Serializable
+data class PlayerAccountDto(
+    val id: Long = 0,
+    val username: String = "",
+    val role: String = "",
+    val email: String? = null,
+    val status: String? = null,
+    val totp_enabled: Boolean = false,
+    /** False for an SSO-provisioned account that has not set a password yet. */
+    val has_password: Boolean = false,
+)
+
+/** `PATCH /auth/me/account/username` body. */
+@Serializable
+data class ChangeUsernameRequest(val username: String)
+
+/** The `{ username }` returned by a successful username change. */
+@Serializable
+data class UsernameResponse(val username: String = "")
+
+/**
+ * `PATCH /auth/me/account/password` body. [currentPassword] is omitted only for an
+ * SSO-provisioned account setting its initial password (has_password == false).
+ */
+@Serializable
+data class ChangePasswordRequest(
+    val newPassword: String,
+    val currentPassword: String? = null,
+)
+
+/** Enrollment material from `POST /auth/me/account/totp/setup`. */
+@Serializable
+data class TotpSetupDto(
+    val otpauthUrl: String? = null,
+    /** QR code as a `data:image/png;base64,…` URL. */
+    val qr: String? = null,
+)
+
+/** `POST /auth/me/account/totp/enable|disable` body — a current authenticator code. */
+@Serializable
+data class TotpCodeRequest(val code: String)
+
+/** Result of enabling/disabling 2FA. */
+@Serializable
+data class TotpStateDto(val totp_enabled: Boolean = false)
+
+/** A linked external identity (`GET /auth/me/account/identities`). */
+@Serializable
+data class LinkedIdentityDto(
+    val provider: String = "",
+    val email: String? = null,
+    val linked_at: String? = null,
+)

app/src/main/java/com/runicgateway/app/data/api/dto/AuthDto.kt

@@ -0,0 +1,67 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.Serializable
+
+/**
+ * The mobile bearer-auth wire shapes (PLAN.md §4.1). Field names match the
+ * backend's `auth/mobile` controller and `/auth/me` exactly; every DTO ignores
+ * unknown keys (NetworkModule's lenient Json), so additive backend fields are
+ * safe (§8, recorded for M1).
+ */
+
+/** `POST /auth/mobile/login` body. [code] is only sent on the 2FA retry. */
+@Serializable
+data class MobileLoginRequest(
+    val username: String,
+    val password: String,
+    val code: String? = null,
+)
+
+/** `POST /auth/mobile/refresh` body. */
+@Serializable
+data class MobileRefreshRequest(val refreshToken: String)
+
+/** `POST /auth/mobile/logout` body — revoke this session or (with [all]) every session. */
+@Serializable
+data class MobileLogoutRequest(
+    val refreshToken: String? = null,
+    val all: Boolean? = null,
+)
+
+/**
+ * Success payload from login and refresh: the token pair, the access lifetime
+ * (a zeit/ms duration string, e.g. "15m"), and the safe (secret-stripped) user.
+ */
+@Serializable
+data class MobileTokenResponse(
+    val accessToken: String,
+    val refreshToken: String,
+    val expiresIn: String? = null,
+    val user: SafeUserDto,
+)
+
+/** The minimal, non-sensitive user the app needs to render + gate the menu (§5). */
+@Serializable
+data class SafeUserDto(
+    val id: Long,
+    val username: String,
+    val role: String,
+)
+
+/** `GET /auth/me` envelope — the role source, re-validated on resume (§4.3). */
+@Serializable
+data class MeResponse(val user: SafeUserDto)
+
+/**
+ * The `401 { totpRequired: true }` body the single-request 2FA flow returns when
+ * an account has TOTP on and no/invalid code accompanied the login (§4.1). Parsed
+ * from the error body since it is not a 2xx response.
+ */
+@Serializable
+data class TotpRequiredError(
+    val totpRequired: Boolean = false,
+    val message: String? = null,
+)

app/src/main/java/com/runicgateway/app/data/api/dto/PlayerShardDto.kt

@@ -0,0 +1,224 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.JsonObject
+
+/**
+ * DTOs for a player's OWN game data (PLAN.md §6.3), read over the bearer-gated
+ * `/player/shard/…` surface. The roster / char / vendor reads return the sidecar
+ * payload verbatim (a permissive object), so only the fields the app renders are
+ * modeled — unknown keys are ignored by the JSON parser (matching the website's
+ * `CharacterSheet.jsx` / `GameAccounts.jsx` and `docs/link/INTEGRATION.md` §5).
+ * Presentation is text-only for v1 (no item icons / paperdoll).
+ *
+ * In-game serials are hex strings (e.g. "0x24C"), unlike the numeric serials on
+ * the public boards — these are separate endpoints with separate shapes.
+ */
+
+// ── Game-account linking ─────────────────────────────────────────────────────
+
+/** `GET /player/shard/accounts` — a linked in-game account. */
+@Serializable
+data class ShardLinkDto(
+    val account: String = "",
+    val userId: Long? = null,
+    val charName: String? = null,
+    val linkedAt: String? = null,
+)
+
+/** `POST /player/shard/link` body — the one-time code shown by `[link` in game. */
+@Serializable
+data class ShardLinkRequest(val code: String)
+
+/** `POST /player/shard/link` result — the confirmed link. */
+@Serializable
+data class ShardLinkResultDto(
+    val linked: Boolean = false,
+    val account: String? = null,
+)
+
+/** `POST /player/shard/account` (hybrid signup) body. */
+@Serializable
+data class CreateGameAccountRequest(
+    val account: String,
+    val password: String,
+)
+
+// ── Character roster + sheet ─────────────────────────────────────────────────
+
+/** `GET /player/shard/roster/:account` — the account's characters (incl. offline). */
+@Serializable
+data class RosterDto(
+    val acct: String? = null,
+    val chars: List<RosterCharDto> = emptyList(),
+)
+
+/** One character in a roster; the picker fetches the full sheet on demand. */
+@Serializable
+data class RosterCharDto(
+    val slot: Int? = null,
+    val serial: String = "",
+    val name: String? = null,
+    val body: Int? = null,
+    val online: Boolean = false,
+)
+
+/**
+ * `GET /player/shard/char/:serial` — a character sheet. `guild` / `governorOf` are
+ * best-effort cross-links the backend decorates in (never fail the sheet).
+ */
+@Serializable
+data class CharProfileDto(
+    val serial: String? = null,
+    val name: String? = null,
+    val title: String? = null,
+    val online: Boolean = false,
+    val acct: String? = null,
+    val stats: CharStatsDto? = null,
+    val skills: List<SkillDto> = emptyList(),
+    val equipment: List<EquipmentDto> = emptyList(),
+    val titles: TitlesDto? = null,
+    val guild: GuildRefDto? = null,
+    val governorOf: List<String> = emptyList(),
+)
+
+@Serializable
+data class CharStatsDto(
+    val str: Int? = null,
+    val dex: Int? = null,
+    val int: Int? = null,
+    val hits: Int? = null,
+    val hitsMax: Int? = null,
+    val mana: Int? = null,
+    val manaMax: Int? = null,
+    val stam: Int? = null,
+    val stamMax: Int? = null,
+    val resist: ResistDto? = null,
+)
+
+@Serializable
+data class ResistDto(
+    val phys: Int? = null,
+    val fire: Int? = null,
+    val cold: Int? = null,
+    val pois: Int? = null,
+    val energy: Int? = null,
+)
+
+/**
+ * A skill line. `base` is the trained value, `value` includes item/temp bonuses,
+ * `cap` is the cap — do NOT assume base ≤ cap (GM chars exceed it). Doubles, as the
+ * shard reports tenths.
+ */
+@Serializable
+data class SkillDto(
+    val n: String? = null,
+    val base: Double? = null,
+    val value: Double? = null,
+    val cap: Double? = null,
+)
+
+/**
+ * An equipped item. Names are usually clilocs (numeric), not strings, and the app
+ * ships no cliloc table, so the text-only sheet renders layer + id + hue + mods.
+ * [mods] is a flattened map of non-zero AOS attributes (empty for plain items);
+ * kept as a raw object since values may be numbers or strings.
+ */
+@Serializable
+data class EquipmentDto(
+    val serial: String? = null,
+    val layer: String? = null,
+    val itemId: Int? = null,
+    val hue: Int? = null,
+    val mods: JsonObject? = null,
+)
+
+/**
+ * Display titles (Protocol 2.0). `selected` is the index into `reward` currently
+ * shown (-1 if none); `reward` entries may be a cliloc number-as-string or a
+ * literal — numeric ones are skipped without a cliloc table (as the website does).
+ */
+@Serializable
+data class TitlesDto(
+    val selected: Int? = null,
+    val reward: List<String> = emptyList(),
+    val fameKarma: String? = null,
+    val skill: String? = null,
+)
+
+/** The guild a character leads (cross-linked from board data). */
+@Serializable
+data class GuildRefDto(
+    val name: String? = null,
+    val abbr: String? = null,
+)
+
+// ── Player vendors + sales ───────────────────────────────────────────────────
+
+/** `GET /player/shard/vendors/:account` — every player vendor on the account. */
+@Serializable
+data class VendorSnapshotDto(
+    val acct: String? = null,
+    val vendors: List<VendorDto> = emptyList(),
+)
+
+@Serializable
+data class VendorDto(
+    val serial: String? = null,
+    val shopName: String? = null,
+    val holdGold: Long? = null,
+    val ownerSerial: String? = null,
+    val map: String? = null,
+    val x: Int? = null,
+    val y: Int? = null,
+    val listings: List<VendorListingDto> = emptyList(),
+)
+
+/** A single vendor listing. Item names are clilocs (see [EquipmentDto]); text-only. */
+@Serializable
+data class VendorListingDto(
+    val serial: String? = null,
+    val itemId: Int? = null,
+    val amount: Int? = null,
+    val price: Long? = null,
+    val forSale: Boolean = false,
+)
+
+/** `GET /player/shard/sales` — a player-vendor sale, visible only to the owner. */
+@Serializable
+data class VendorSaleDto(
+    /** Sale time, epoch ms. */
+    val t: Long? = null,
+    val itemType: String? = null,
+    val amount: Int? = null,
+    val price: Long? = null,
+    val commission: Int? = null,
+    val ownerAcct: String? = null,
+)
+
+// ── Player houses ────────────────────────────────────────────────────────────
+
+/**
+ * `GET /player/shard/houses` — the caller's OWN houses, with full decay/IDOC
+ * detail (their own property). Serial is a hex string here.
+ */
+@Serializable
+data class PlayerHouseDto(
+    val serial: String = "",
+    val stage: String? = null,
+    val map: String? = null,
+    val x: Int? = null,
+    val y: Int? = null,
+    val z: Int? = null,
+    val region: String? = null,
+    val name: String? = null,
+    val ownerSerial: String? = null,
+    val ownerAcct: String? = null,
+    val builtOn: String? = null,
+    val lastRefreshed: String? = null,
+    val isIdoc: Boolean = false,
+    val updatedAt: String? = null,
+)

app/src/main/java/com/runicgateway/app/data/repository/AccountRepository.kt

@@ -0,0 +1,51 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.repository
+
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.core.result.safeApiCall
+import com.runicgateway.app.data.api.MeApi
+import com.runicgateway.app.data.api.dto.ChangePasswordRequest
+import com.runicgateway.app.data.api.dto.ChangeUsernameRequest
+import com.runicgateway.app.data.api.dto.LinkedIdentityDto
+import com.runicgateway.app.data.api.dto.PlayerAccountDto
+import com.runicgateway.app.data.api.dto.TotpCodeRequest
+import com.runicgateway.app.data.api.dto.TotpSetupDto
+import com.runicgateway.app.data.api.dto.TotpStateDto
+import com.runicgateway.app.data.api.dto.UsernameResponse
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Self-service account management over the role-agnostic `/auth/me/account*`
+ * surface (PLAN.md §6.3, §6.4). Every call returns a typed [ApiResult] so the
+ * screens can map known statuses (409 taken, 400 wrong password / invalid code,
+ * 429 rate-limited) to friendly copy without a repository ever throwing (§7).
+ */
+@Singleton
+class AccountRepository @Inject constructor(
+    private val api: MeApi,
+) {
+    suspend fun getAccount(): ApiResult<PlayerAccountDto> = safeApiCall { api.getAccount() }
+
+    suspend fun changeUsername(username: String): ApiResult<UsernameResponse> =
+        safeApiCall { api.changeUsername(ChangeUsernameRequest(username)) }
+
+    /** [currentPassword] is null only for an SSO account setting its first password. */
+    suspend fun changePassword(newPassword: String, currentPassword: String?): ApiResult<Unit> =
+        safeApiCall { api.changePassword(ChangePasswordRequest(newPassword, currentPassword)) }
+
+    suspend fun totpSetup(): ApiResult<TotpSetupDto> = safeApiCall { api.totpSetup() }
+
+    suspend fun totpEnable(code: String): ApiResult<TotpStateDto> =
+        safeApiCall { api.totpEnable(TotpCodeRequest(code)) }
+
+    suspend fun totpDisable(code: String): ApiResult<TotpStateDto> =
+        safeApiCall { api.totpDisable(TotpCodeRequest(code)) }
+
+    suspend fun identities(): ApiResult<List<LinkedIdentityDto>> = safeApiCall { api.identities() }
+
+    suspend fun unlinkIdentity(provider: String): ApiResult<Unit> =
+        safeApiCall { api.unlinkIdentity(provider) }
+}

app/src/main/java/com/runicgateway/app/data/repository/AuthRepository.kt

@@ -0,0 +1,115 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.repository
+
+import com.runicgateway.app.core.auth.SessionManager
+import com.runicgateway.app.data.api.AuthApi
+import com.runicgateway.app.data.api.dto.MobileLoginRequest
+import com.runicgateway.app.data.api.dto.MobileLogoutRequest
+import com.runicgateway.app.data.api.dto.MobileTokenResponse
+import com.runicgateway.app.data.api.dto.TotpRequiredError
+import kotlinx.coroutines.CancellationException
+import kotlinx.serialization.json.Json
+import retrofit2.Response
+import java.io.IOException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Native username/password (+TOTP) auth — the app's only native credential flow
+ * (PLAN.md §4.1). It drives the [SessionManager]: a successful login establishes
+ * the session; logout revokes it. Registration/invite/reset/SSO are website
+ * hand-offs (§4.2), not here.
+ */
+@Singleton
+class AuthRepository @Inject constructor(
+    private val authApi: AuthApi,
+    private val sessionManager: SessionManager,
+    private val json: Json,
+) {
+
+    /** Outcome of a login attempt (§4.1). */
+    sealed interface LoginResult {
+        data object Success : LoginResult
+
+        /** The account has 2FA on — reveal the code field and resubmit with a code. */
+        data object TotpRequired : LoginResult
+        data object InvalidCredentials : LoginResult
+
+        /** Guarded by per-IP backoff → slowdown → hard cap; back off and retry. */
+        data object RateLimited : LoginResult
+
+        /** Any other server failure (5xx / unexpected). */
+        data object ServerError : LoginResult
+
+        /** No answer — offline, DNS, TLS, timeout. */
+        data object NetworkError : LoginResult
+    }
+
+    suspend fun login(username: String, password: String, code: String? = null): LoginResult {
+        val response: Response<MobileTokenResponse> = try {
+            authApi.login(MobileLoginRequest(username = username, password = password, code = code))
+        } catch (e: CancellationException) {
+            throw e
+        } catch (_: IOException) {
+            return LoginResult.NetworkError
+        }
+
+        if (response.isSuccessful) {
+            val body = response.body() ?: return LoginResult.ServerError
+            sessionManager.onSignedIn(body.accessToken, body.refreshToken, body.user)
+            return LoginResult.Success
+        }
+
+        return when (response.code()) {
+            401 -> if (isTotpRequired(response)) LoginResult.TotpRequired else LoginResult.InvalidCredentials
+            429 -> LoginResult.RateLimited
+            else -> LoginResult.ServerError
+        }
+    }
+
+    /**
+     * Revoke this session (or, with [allDevices], every session) and clear local
+     * tokens (§4.3). Best-effort: the local session is torn down even if the
+     * network call fails, so the user is always signed out locally.
+     */
+    suspend fun logout(allDevices: Boolean = false) {
+        val refreshToken = sessionManager.currentRefreshToken()
+        try {
+            authApi.logout(MobileLogoutRequest(refreshToken = refreshToken, all = allDevices))
+        } catch (e: CancellationException) {
+            throw e
+        } catch (_: Exception) {
+            // Ignore — we still drop the local session below.
+        }
+        sessionManager.onSignedOut()
+    }
+
+    /**
+     * Re-validate the session against `GET /auth/me` on app resume (§4.3). A
+     * success refreshes the cached role (roles change server-side); a `401` that
+     * survives the silent refresh means the session is dead → sign out. Transient
+     * failures are ignored so a flaky network doesn't bounce the user.
+     */
+    suspend fun revalidate() {
+        if (!sessionManager.isSignedIn) return
+        try {
+            val me = authApi.me()
+            sessionManager.onUserRefreshed(me.user)
+        } catch (e: CancellationException) {
+            throw e
+        } catch (e: retrofit2.HttpException) {
+            if (e.code() == 401) sessionManager.onSignedOut()
+        } catch (_: IOException) {
+            // Offline — keep the session; the next authed call will re-check.
+        }
+    }
+
+    private fun isTotpRequired(response: Response<*>): Boolean = try {
+        val raw = response.errorBody()?.string()
+        !raw.isNullOrBlank() && json.decodeFromString<TotpRequiredError>(raw).totpRequired
+    } catch (_: Exception) {
+        false
+    }
+}

app/src/main/java/com/runicgateway/app/data/repository/ConnectionRepository.kt

@@ -3,6 +3,7 @@
  */
 package com.runicgateway.app.data.repository
 
+import com.runicgateway.app.core.auth.SessionManager
 import com.runicgateway.app.core.net.BaseUrlHolder
 import com.runicgateway.app.core.net.ServerUrl
 import com.runicgateway.app.core.prefs.ServerPreferences
@@ -24,6 +25,7 @@ class ConnectionRepository @Inject constructor(
     private val api: PublicApi,
     private val prefs: ServerPreferences,
     private val baseUrlHolder: BaseUrlHolder,
+    private val sessionManager: SessionManager,
     private val config: com.runicgateway.app.core.AppConfig,
 ) {
 
@@ -34,6 +36,13 @@ class ConnectionRepository @Inject constructor(
 
         /** Reachable and 2xx, but not a Runic Gateway backend (wrong version identity). */
         data object NotRunicGateway : ProbeResult
+
+        /**
+         * A Runic Gateway backend, but speaking an API version this app build does
+         * not support (§3 version guard) — refuse rather than mis-render. [serverApi]
+         * is what the site reported; [supportedApi] is what this app speaks.
+         */
+        data class VersionMismatch(val serverApi: String, val supportedApi: String) : ProbeResult
         data class ServerError(val status: Int) : ProbeResult
         data class Unreachable(val cause: Throwable) : ProbeResult
     }
@@ -66,14 +75,15 @@ class ConnectionRepository @Inject constructor(
             ?: return ProbeResult.InvalidUrl(ServerUrl.Reason.MALFORMED)
 
         return when (val result = safeApiCall { api.probeStatus(statusUrl) }) {
-            is ApiResult.Ok -> {
-                if (!result.data.version.service.equals(RUNIC_SERVICE_ID, ignoreCase = true)) {
-                    ProbeResult.NotRunicGateway
-                } else {
+            is ApiResult.Ok -> when (val verdict = evaluateVersion(result.data.version)) {
+                is VersionVerdict.Ok -> {
                     prefs.setBaseUrl(normalized.toString())
                     baseUrlHolder.set(normalized)
                     ProbeResult.Success(result.data)
                 }
+                is VersionVerdict.NotRunicGateway -> ProbeResult.NotRunicGateway
+                is VersionVerdict.Mismatch ->
+                    ProbeResult.VersionMismatch(serverApi = verdict.serverApi, supportedApi = SUPPORTED_API)
             }
             is ApiResult.HttpError -> ProbeResult.ServerError(result.status)
             is ApiResult.NetworkError -> ProbeResult.Unreachable(result.cause)
@@ -81,15 +91,48 @@ class ConnectionRepository @Inject constructor(
     }
 
     /**
-     * Hard reset for a Settings → Server switch (§3): clear the saved URL and
-     * deactivate it. Token/cache clearing joins here in M3 once sessions exist.
+     * Hard reset for a Settings → Server switch (§3): sign out (clear stored
+     * tokens), clear the saved URL, and deactivate it — the app returns to a
+     * signed-out state against the new host.
      */
     suspend fun disconnect() {
+        sessionManager.onSignedOut()
         prefs.clear()
         baseUrlHolder.set(null)
     }
 
-    private companion object {
+    /** The pure outcome of inspecting a probed site's [VersionDto] (§3 version guard). */
+    internal sealed interface VersionVerdict {
+        data object Ok : VersionVerdict
+        data object NotRunicGateway : VersionVerdict
+        data class Mismatch(val serverApi: String) : VersionVerdict
+    }
+
+    internal companion object {
         const val RUNIC_SERVICE_ID = "runic-gateway"
+
+        /** The backend API major version this app build speaks (matches `/public/version` `api`). */
+        const val SUPPORTED_API = "v1"
+
+        /**
+         * Decide whether a probed site is a Runic Gateway backend this app can talk
+         * to. Pure (no I/O) so it is unit-testable without a live site. Lenient on a
+         * blank `api` (an older backend that predates version surfacing); refuses only
+         * an API version we positively know we can't parse (e.g. a future `v2`).
+         */
+        fun evaluateVersion(
+            version: com.runicgateway.app.data.api.dto.VersionDto,
+            supportedApi: String = SUPPORTED_API,
+        ): VersionVerdict {
+            if (!version.service.trim().equals(RUNIC_SERVICE_ID, ignoreCase = true)) {
+                return VersionVerdict.NotRunicGateway
+            }
+            val serverApi = version.api.trim()
+            return when {
+                serverApi.isEmpty() -> VersionVerdict.Ok
+                serverApi.equals(supportedApi, ignoreCase = true) -> VersionVerdict.Ok
+                else -> VersionVerdict.Mismatch(serverApi)
+            }
+        }
     }
 }

app/src/main/java/com/runicgateway/app/data/repository/PlayerShardRepository.kt

@@ -0,0 +1,50 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.repository
+
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.core.result.safeApiCall
+import com.runicgateway.app.data.api.PlayerShardApi
+import com.runicgateway.app.data.api.dto.CharProfileDto
+import com.runicgateway.app.data.api.dto.CreateGameAccountRequest
+import com.runicgateway.app.data.api.dto.PlayerHouseDto
+import com.runicgateway.app.data.api.dto.RosterDto
+import com.runicgateway.app.data.api.dto.ShardLinkDto
+import com.runicgateway.app.data.api.dto.ShardLinkRequest
+import com.runicgateway.app.data.api.dto.ShardLinkResultDto
+import com.runicgateway.app.data.api.dto.VendorSaleDto
+import com.runicgateway.app.data.api.dto.VendorSnapshotDto
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * A player's own game data + game-account linking (PLAN.md §6.3), over the
+ * bearer-gated `/player/shard/…` surface. Every read returns a typed [ApiResult]
+ * so a down shard (`503`) renders as "offline, retry" and a not-linked account
+ * (`403`) is handled cleanly — the repository never throws for an expected
+ * failure (§7). Ownership is enforced server-side.
+ */
+@Singleton
+class PlayerShardRepository @Inject constructor(
+    private val api: PlayerShardApi,
+) {
+    suspend fun link(code: String): ApiResult<ShardLinkResultDto> =
+        safeApiCall { api.link(ShardLinkRequest(code)) }
+
+    suspend fun createAccount(account: String, password: String): ApiResult<ShardLinkResultDto> =
+        safeApiCall { api.createAccount(CreateGameAccountRequest(account, password)) }
+
+    suspend fun accounts(): ApiResult<List<ShardLinkDto>> = safeApiCall { api.accounts() }
+
+    suspend fun roster(account: String): ApiResult<RosterDto> = safeApiCall { api.roster(account) }
+
+    suspend fun char(serial: String): ApiResult<CharProfileDto> = safeApiCall { api.char(serial) }
+
+    suspend fun vendors(account: String): ApiResult<VendorSnapshotDto> =
+        safeApiCall { api.vendors(account) }
+
+    suspend fun sales(): ApiResult<List<VendorSaleDto>> = safeApiCall { api.sales() }
+
+    suspend fun houses(): ApiResult<List<PlayerHouseDto>> = safeApiCall { api.houses() }
+}

app/src/main/java/com/runicgateway/app/di/NetworkModule.kt

@@ -6,9 +6,15 @@ package com.runicgateway.app.di
 import android.os.Build
 import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
 import com.runicgateway.app.BuildConfig
+import com.runicgateway.app.core.net.AuthInterceptor
 import com.runicgateway.app.core.net.BaseUrlHolder
 import com.runicgateway.app.core.net.HostSelectionInterceptor
+import com.runicgateway.app.core.net.TokenAuthenticator
 import com.runicgateway.app.core.net.UserAgentInterceptor
+import com.runicgateway.app.data.api.AuthApi
+import com.runicgateway.app.data.api.AuthRefreshApi
+import com.runicgateway.app.data.api.MeApi
+import com.runicgateway.app.data.api.PlayerShardApi
 import com.runicgateway.app.data.api.PublicApi
 import dagger.Module
 import dagger.Provides
@@ -42,16 +48,25 @@ object NetworkModule {
         return UserAgentInterceptor(ua)
     }
 
+    /**
+     * The main client every API and the SSE stream ride on. Order: identify (UA),
+     * retarget onto the configured shard host, then attach the bearer; the
+     * [TokenAuthenticator] handles silent refresh-on-401 (§4.1). Logging sits last
+     * so it observes the final, authed request.
+     */
     @Provides
     @Singleton
     fun provideOkHttpClient(
         hostSelectionInterceptor: HostSelectionInterceptor,
         userAgentInterceptor: UserAgentInterceptor,
+        authInterceptor: AuthInterceptor,
+        tokenAuthenticator: TokenAuthenticator,
     ): OkHttpClient {
         val builder = OkHttpClient.Builder()
-            // User-Agent first, then host retargeting, so both apply to every call.
             .addInterceptor(userAgentInterceptor)
             .addInterceptor(hostSelectionInterceptor)
+            .addInterceptor(authInterceptor)
+            .authenticator(tokenAuthenticator)
 
         if (BuildConfig.DEBUG) {
             builder.addInterceptor(
@@ -75,4 +90,44 @@ object NetworkModule {
     @Provides
     @Singleton
     fun providePublicApi(retrofit: Retrofit): PublicApi = retrofit.create(PublicApi::class.java)
+
+    @Provides
+    @Singleton
+    fun provideAuthApi(retrofit: Retrofit): AuthApi = retrofit.create(AuthApi::class.java)
+
+    /** Role-agnostic self-service (§6.4) — bearer-authed on the main client. */
+    @Provides
+    @Singleton
+    fun provideMeApi(retrofit: Retrofit): MeApi = retrofit.create(MeApi::class.java)
+
+    /** A player's own game data + linking (§6.3) — bearer-authed on the main client. */
+    @Provides
+    @Singleton
+    fun providePlayerShardApi(retrofit: Retrofit): PlayerShardApi =
+        retrofit.create(PlayerShardApi::class.java)
+
+    /**
+     * Token refresh runs on its own **bare** client — UA + host retargeting only,
+     * no auth interceptor and no authenticator — so a refresh can never recurse
+     * back through [TokenAuthenticator] (§4.3). This throwaway client/Retrofit is
+     * not exposed as a bean, so there is no ambiguous [OkHttpClient] binding.
+     */
+    @Provides
+    @Singleton
+    fun provideAuthRefreshApi(
+        hostSelectionInterceptor: HostSelectionInterceptor,
+        userAgentInterceptor: UserAgentInterceptor,
+        json: Json,
+    ): AuthRefreshApi {
+        val bareClient = OkHttpClient.Builder()
+            .addInterceptor(userAgentInterceptor)
+            .addInterceptor(hostSelectionInterceptor)
+            .build()
+        val retrofit = Retrofit.Builder()
+            .baseUrl(BaseUrlHolder.PLACEHOLDER_BASE_URL)
+            .client(bareClient)
+            .addConverterFactory(json.asConverterFactory("application/json".toMediaType()))
+            .build()
+        return retrofit.create(AuthRefreshApi::class.java)
+    }
 }

app/src/main/java/com/runicgateway/app/di/StorageModule.kt

@@ -0,0 +1,22 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.di
+
+import com.runicgateway.app.core.auth.EncryptedTokenStore
+import com.runicgateway.app.core.auth.TokenStore
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+/** Binds the at-rest token store to its EncryptedSharedPreferences impl (§4.3). */
+@Module
+@InstallIn(SingletonComponent::class)
+abstract class StorageModule {
+
+    @Binds
+    @Singleton
+    abstract fun bindTokenStore(impl: EncryptedTokenStore): TokenStore
+}

app/src/main/java/com/runicgateway/app/ui/RunicApp.kt

@@ -4,7 +4,6 @@
 package com.runicgateway.app.ui
 
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
@@ -15,6 +14,7 @@ import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.ModalDrawerSheet
 import androidx.compose.material3.ModalNavigationDrawer
 import androidx.compose.material3.NavigationDrawerItem
@@ -22,13 +22,20 @@ import androidx.compose.material3.NavigationDrawerItemDefaults
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.rememberDrawerState
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.LifecycleResumeEffect
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
 import androidx.navigation.NavType
 import androidx.navigation.compose.NavHost
@@ -37,13 +44,24 @@ import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navArgument
 import com.runicgateway.app.R
+import com.runicgateway.app.core.auth.Session
 import com.runicgateway.app.data.api.dto.BrandDto
+import com.runicgateway.app.ui.auth.AccountScreen
+import com.runicgateway.app.ui.auth.LoginScreen
+import com.runicgateway.app.ui.auth.roleLabelRes
 import com.runicgateway.app.ui.contact.ContactScreen
 import com.runicgateway.app.ui.home.HomeScreen
+import com.runicgateway.app.ui.navigation.APP_MENU
 import com.runicgateway.app.ui.navigation.Routes
+import com.runicgateway.app.ui.navigation.visibleEntries
 import com.runicgateway.app.ui.news.NewsScreen
 import com.runicgateway.app.ui.news.PostScreen
 import com.runicgateway.app.ui.page.PageScreen
+import com.runicgateway.app.ui.player.CharacterSheetScreen
+import com.runicgateway.app.ui.player.CharactersScreen
+import com.runicgateway.app.ui.player.MyHousesScreen
+import com.runicgateway.app.ui.player.VendorsScreen
+import com.runicgateway.app.ui.session.SessionViewModel
 import com.runicgateway.app.ui.shard.ChampsScreen
 import com.runicgateway.app.ui.shard.GovernorsScreen
 import com.runicgateway.app.ui.shard.GuildsScreen
@@ -54,27 +72,18 @@ import com.runicgateway.app.ui.wiki.WikiPageScreen
 import com.runicgateway.app.ui.wiki.WikiScreen
 import kotlinx.coroutines.launch
 
-/** A navigation menu entry (PLAN.md §5). For M1 every entry is public. */
-private data class MenuEntry(val route: String, val labelRes: Int)
-
-private val PUBLIC_MENU = listOf(
-    MenuEntry(Routes.HOME, R.string.menu_home),
-    MenuEntry(Routes.NEWS, R.string.menu_news),
-    MenuEntry(Routes.WIKI, R.string.menu_wiki),
-    MenuEntry(Routes.SHARD, R.string.menu_shard),
-    MenuEntry(Routes.page("about"), R.string.menu_about),
-    MenuEntry(Routes.CONTACT, R.string.menu_contact),
-)
-
 /** Destinations that show the drawer (hamburger); others show a back arrow. */
 private val TOP_LEVEL_ROUTES = setOf(
-    Routes.HOME, Routes.NEWS, Routes.WIKI, Routes.SHARD, Routes.CONTACT, Routes.PAGE,
+    Routes.HOME, Routes.NEWS, Routes.WIKI, Routes.SHARD, Routes.CONTACT, Routes.PAGE, Routes.ACCOUNT,
+    Routes.PLAYER_CHARACTERS, Routes.PLAYER_VENDORS, Routes.PLAYER_HOUSES,
 )
 
 /**
  * The main app shell once a shard site is configured (PLAN.md §5): one shared,
- * declarative navigation drawer over the public content graph, plus the
- * Settings → Server switch. The signed-in menu groups and auth toggle join in M3.
+ * declarative, access-level navigation drawer whose entries are filtered by the
+ * current session, plus the Sign in / Sign out toggle and the Settings → Server
+ * switch. The signed-in role is re-validated against the backend on every resume
+ * (§4.3), so a server-side demotion drops menu access promptly.
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -82,29 +91,45 @@ fun RunicApp(
     brand: BrandDto?,
     onChangeServer: () -> Unit,
     modifier: Modifier = Modifier,
+    sessionViewModel: SessionViewModel = hiltViewModel(),
 ) {
     val navController = rememberNavController()
     val drawerState = rememberDrawerState(DrawerValue.Closed)
     val scope = rememberCoroutineScope()
 
+    val session by sessionViewModel.session.collectAsStateWithLifecycle()
+
+    // Re-validate the cached role each time the app returns to the foreground (§4.3).
+    LifecycleResumeEffect(Unit) {
+        sessionViewModel.revalidate()
+        onPauseOrDispose { }
+    }
+
     val backStackEntry by navController.currentBackStackEntryAsState()
     val currentRoute = backStackEntry?.destination?.route
     val isTopLevel = currentRoute in TOP_LEVEL_ROUTES
+    val entries = visibleEntries(APP_MENU, session)
 
     ModalNavigationDrawer(
         drawerState = drawerState,
         gesturesEnabled = isTopLevel,
         drawerContent = {
-            ModalDrawerSheet {
+            ModalDrawerSheet(drawerContainerColor = MaterialTheme.colorScheme.surfaceVariant) {
+                val drawerItemColors = NavigationDrawerItemDefaults.colors(
+                    selectedContainerColor = MaterialTheme.colorScheme.secondaryContainer,
+                    selectedTextColor = MaterialTheme.colorScheme.onSecondaryContainer,
+                    unselectedTextColor = MaterialTheme.colorScheme.onSurface,
+                )
                 Spacer(Modifier.height(12.dp))
                 Text(
                     text = brand?.name?.takeIf { it.isNotBlank() } ?: stringResource(R.string.app_name),
-                    style = androidx.compose.material3.MaterialTheme.typography.titleLarge,
+                    style = MaterialTheme.typography.titleLarge,
+                    color = MaterialTheme.colorScheme.onSurface,
                     modifier = Modifier.padding(horizontal = 24.dp, vertical = 12.dp),
                 )
                 HorizontalDivider()
                 Spacer(Modifier.height(8.dp))
-                PUBLIC_MENU.forEach { entry ->
+                entries.forEach { entry ->
                     NavigationDrawerItem(
                         label = { Text(stringResource(entry.labelRes)) },
                         selected = currentRoute == entry.route,
@@ -112,10 +137,34 @@ fun RunicApp(
                             scope.launch { drawerState.close() }
                             navController.navigateTopLevel(entry.route)
                         },
+                        colors = drawerItemColors,
                         modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding),
                     )
                 }
+
                 HorizontalDivider(Modifier.padding(vertical = 8.dp))
+
+                // Sign in / Sign out toggles on the session (§5).
+                val signInLabel = if (session is Session.SignedIn) {
+                    R.string.menu_sign_out
+                } else {
+                    R.string.menu_sign_in
+                }
+                NavigationDrawerItem(
+                    label = { Text(stringResource(signInLabel)) },
+                    selected = false,
+                    onClick = {
+                        scope.launch { drawerState.close() }
+                        if (session is Session.SignedIn) {
+                            sessionViewModel.signOut()
+                            navController.navigateTopLevel(Routes.HOME)
+                        } else {
+                            navController.navigate(Routes.LOGIN)
+                        }
+                    },
+                    colors = drawerItemColors,
+                    modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding),
+                )
                 NavigationDrawerItem(
                     label = { Text(stringResource(R.string.menu_change_server)) },
                     selected = false,
@@ -123,6 +172,7 @@ fun RunicApp(
                         scope.launch { drawerState.close() }
                         onChangeServer()
                     },
+                    colors = drawerItemColors,
                     modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding),
                 )
             }
@@ -132,10 +182,19 @@ fun RunicApp(
             modifier = modifier,
             topBar = {
                 TopAppBar(
+                    colors = TopAppBarDefaults.topAppBarColors(
+                        containerColor = MaterialTheme.colorScheme.surfaceVariant,
+                        titleContentColor = MaterialTheme.colorScheme.onSurface,
+                        navigationIconContentColor = MaterialTheme.colorScheme.onSurface,
+                        actionIconContentColor = MaterialTheme.colorScheme.onSurface,
+                    ),
                     title = {
                         Text(
-                            brand?.name?.takeIf { it.isNotBlank() }
-                                ?: stringResource(R.string.app_name),
+                            text = (brand?.name?.takeIf { it.isNotBlank() }
+                                ?: stringResource(R.string.app_name)).uppercase(),
+                            style = MaterialTheme.typography.titleSmall.copy(letterSpacing = 1.2.sp),
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
                         )
                     },
                     navigationIcon = {
@@ -158,6 +217,9 @@ fun RunicApp(
             RunicNavHost(
                 navController = navController,
                 brand = brand,
+                session = session,
+                onSignOut = { sessionViewModel.signOut() },
+                onSignOutEverywhere = { sessionViewModel.signOut(allDevices = true) },
                 modifier = Modifier.padding(innerPadding),
             )
         }
@@ -168,6 +230,9 @@ fun RunicApp(
 private fun RunicNavHost(
     navController: NavHostController,
     brand: BrandDto?,
+    session: Session,
+    onSignOut: () -> Unit,
+    onSignOutEverywhere: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
     NavHost(
@@ -226,6 +291,63 @@ private fun RunicNavHost(
         composable(Routes.CONTACT) {
             ContactScreen()
         }
+        composable(Routes.LOGIN) {
+            LoginScreen(onSignedIn = { navController.popBackStack() })
+        }
+        composable(Routes.ACCOUNT) {
+            // Only meaningful while signed in; a sign-out (here or from the drawer)
+            // sends the user home rather than leaving a stale identity on screen.
+            when (val s = session) {
+                is Session.SignedIn -> AccountScreen(
+                    username = s.user.username,
+                    roleLabel = stringResource(roleLabelRes(s.user.role)),
+                    onSignOut = onSignOut,
+                    onSignOutEverywhere = onSignOutEverywhere,
+                )
+                Session.SignedOut -> LaunchedEffect(Unit) {
+                    navController.navigateTopLevel(Routes.HOME)
+                }
+            }
+        }
+
+        // ── Player game data (§6.3) — reached from the player-only menu groups.
+        // The server enforces the player gate on every call; these screens simply
+        // render 401/403/503 as clean states (§7).
+        composable(Routes.PLAYER_CHARACTERS) {
+            PlayerGate(session, navController) {
+                CharactersScreen(onOpenChar = { serial -> navController.navigate(Routes.playerChar(serial)) })
+            }
+        }
+        composable(
+            route = Routes.PLAYER_CHAR,
+            arguments = listOf(navArgument(Routes.Args.SERIAL) { type = NavType.StringType }),
+        ) {
+            CharacterSheetScreen()
+        }
+        composable(Routes.PLAYER_VENDORS) {
+            PlayerGate(session, navController) { VendorsScreen() }
+        }
+        composable(Routes.PLAYER_HOUSES) {
+            PlayerGate(session, navController) { MyHousesScreen() }
+        }
+    }
+}
+
+/**
+ * A UX guard for the player-only groups: while signed in, render [content]; if the
+ * session drops (sign-out, or a server-side demotion caught on resume, §4.3), send
+ * the user home instead of leaving a stale player screen up. The backend remains
+ * the authority — this only mirrors the menu's visibility rule.
+ */
+@Composable
+private fun PlayerGate(
+    session: Session,
+    navController: NavHostController,
+    content: @Composable () -> Unit,
+) {
+    when (session) {
+        is Session.SignedIn -> content()
+        Session.SignedOut -> LaunchedEffect(Unit) { navController.navigateTopLevel(Routes.HOME) }
     }
 }
 

app/src/main/java/com/runicgateway/app/ui/auth/AccountScreen.kt

@@ -0,0 +1,362 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.auth
+
+import android.graphics.BitmapFactory
+import android.util.Base64
+import androidx.annotation.StringRes
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.Card
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.unit.dp
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.core.auth.Role
+import com.runicgateway.app.data.api.dto.LinkedIdentityDto
+import com.runicgateway.app.data.api.dto.PlayerAccountDto
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.auth.AccountViewModel.Feedback
+import com.runicgateway.app.ui.auth.AccountViewModel.Section
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.StatusPill
+
+/**
+ * The signed-in account surface (PLAN.md §5, §6.3): identity + role, self-service
+ * over `/auth/me/account*` (change username/password, TOTP, linked identities),
+ * and the sign-out controls. Credential-provisioning flows (register / reset / SSO
+ * link) stay website hand-offs (§4.2) and are not rebuilt here.
+ */
+@Composable
+fun AccountScreen(
+    username: String,
+    roleLabel: String,
+    onSignOut: () -> Unit,
+    onSignOutEverywhere: () -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: AccountViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState())
+            .padding(16.dp),
+    ) {
+        IdentityCard(username = username, roleLabel = roleLabel)
+
+        when (val account = state.account) {
+            is UiState.Loading -> LoadingView(Modifier.padding(top = 32.dp))
+            is UiState.Error -> ErrorView(account.kind, onRetry = viewModel::load, modifier = Modifier.padding(top = 32.dp))
+            is UiState.Success -> AccountSections(account.data, state, viewModel)
+        }
+
+        HorizontalDivider(Modifier.padding(vertical = 20.dp))
+
+        OutlinedButton(onClick = onSignOut, modifier = Modifier.fillMaxWidth()) {
+            Text(stringResource(R.string.account_sign_out))
+        }
+        TextButton(
+            onClick = onSignOutEverywhere,
+            modifier = Modifier.fillMaxWidth().padding(top = 4.dp),
+        ) {
+            Text(stringResource(R.string.account_sign_out_all))
+        }
+    }
+}
+
+@Composable
+private fun IdentityCard(username: String, roleLabel: String) {
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(20.dp)) {
+            Text(text = username, style = MaterialTheme.typography.titleLarge)
+            StatusPill(
+                text = roleLabel,
+                tone = PillTone.Info,
+                modifier = Modifier.padding(top = 8.dp),
+            )
+        }
+    }
+}
+
+@Composable
+private fun AccountSections(
+    account: PlayerAccountDto,
+    state: AccountViewModel.State,
+    viewModel: AccountViewModel,
+) {
+    UsernameSection(account, state, viewModel)
+    PasswordSection(account, state, viewModel)
+    TwoFactorSection(account, state, viewModel)
+    IdentitiesSection(state, viewModel)
+}
+
+@Composable
+private fun SectionCard(@StringRes titleRes: Int, content: @Composable () -> Unit) {
+    Card(Modifier.fillMaxWidth().padding(top = 12.dp)) {
+        Column(Modifier.padding(16.dp)) {
+            Text(stringResource(titleRes), style = MaterialTheme.typography.titleMedium)
+            content()
+        }
+    }
+}
+
+@Composable
+private fun UsernameSection(
+    account: PlayerAccountDto,
+    state: AccountViewModel.State,
+    viewModel: AccountViewModel,
+) {
+    var username by rememberSaveable(account.username) { mutableStateOf(account.username) }
+    SectionCard(R.string.account_username_title) {
+        OutlinedTextField(
+            value = username,
+            onValueChange = { username = it },
+            singleLine = true,
+            enabled = !state.busy,
+            label = { Text(stringResource(R.string.login_username)) },
+            modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+        )
+        Button(
+            onClick = { viewModel.changeUsername(username) },
+            enabled = !state.busy && username.trim() != account.username && username.trim().length >= 3,
+            modifier = Modifier.padding(top = 12.dp),
+        ) { Text(stringResource(R.string.account_username_action)) }
+        SectionFeedback(state.feedback, Section.USERNAME)
+    }
+}
+
+@Composable
+private fun PasswordSection(
+    account: PlayerAccountDto,
+    state: AccountViewModel.State,
+    viewModel: AccountViewModel,
+) {
+    val hasPassword = account.has_password
+    var current by rememberSaveable { mutableStateOf("") }
+    var next by rememberSaveable { mutableStateOf("") }
+    SectionCard(if (hasPassword) R.string.account_password_title else R.string.account_password_set_title) {
+        if (!hasPassword) {
+            Text(
+                stringResource(R.string.account_password_set_hint),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(top = 8.dp),
+            )
+        }
+        if (hasPassword) {
+            OutlinedTextField(
+                value = current,
+                onValueChange = { current = it },
+                singleLine = true,
+                enabled = !state.busy,
+                label = { Text(stringResource(R.string.account_password_current)) },
+                visualTransformation = PasswordVisualTransformation(),
+                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+            )
+        }
+        OutlinedTextField(
+            value = next,
+            onValueChange = { next = it },
+            singleLine = true,
+            enabled = !state.busy,
+            label = { Text(stringResource(R.string.account_password_new)) },
+            visualTransformation = PasswordVisualTransformation(),
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+            modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+        )
+        Button(
+            onClick = {
+                viewModel.changePassword(next, if (hasPassword) current else null)
+                current = ""
+                next = ""
+            },
+            enabled = !state.busy && next.length >= 8 && (!hasPassword || current.isNotBlank()),
+            modifier = Modifier.padding(top = 12.dp),
+        ) {
+            Text(stringResource(if (hasPassword) R.string.account_password_action else R.string.account_password_set_action))
+        }
+        SectionFeedback(state.feedback, Section.PASSWORD)
+    }
+}
+
+@Composable
+private fun TwoFactorSection(
+    account: PlayerAccountDto,
+    state: AccountViewModel.State,
+    viewModel: AccountViewModel,
+) {
+    var code by rememberSaveable { mutableStateOf("") }
+    SectionCard(R.string.account_totp_title) {
+        StatusPill(
+            text = stringResource(if (account.totp_enabled) R.string.account_totp_on else R.string.account_totp_off),
+            tone = if (account.totp_enabled) PillTone.Success else PillTone.Neutral,
+            modifier = Modifier.padding(top = 8.dp),
+        )
+
+        when {
+            // Enabled → offer disable via a current code.
+            account.totp_enabled -> {
+                CodeField(code, { code = it }, !state.busy)
+                Button(
+                    onClick = { viewModel.disableTotp(code); code = "" },
+                    enabled = !state.busy && code.isNotBlank(),
+                    modifier = Modifier.padding(top = 12.dp),
+                ) { Text(stringResource(R.string.account_totp_disable)) }
+            }
+            // Mid-enrollment → show QR + confirm.
+            state.totpSetup != null -> {
+                Text(
+                    stringResource(R.string.account_totp_scan),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 12.dp),
+                )
+                rememberQrBitmap(state.totpSetup.qr)?.let { bmp ->
+                    Image(
+                        bitmap = bmp,
+                        contentDescription = stringResource(R.string.account_totp_qr_desc),
+                        modifier = Modifier.padding(top = 12.dp).size(180.dp),
+                    )
+                }
+                CodeField(code, { code = it }, !state.busy)
+                Row(Modifier.padding(top = 12.dp), horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    Button(
+                        onClick = { viewModel.enableTotp(code); code = "" },
+                        enabled = !state.busy && code.isNotBlank(),
+                    ) { Text(stringResource(R.string.account_totp_confirm)) }
+                    OutlinedButton(onClick = { viewModel.cancelTotp(); code = "" }, enabled = !state.busy) {
+                        Text(stringResource(R.string.account_totp_cancel))
+                    }
+                }
+            }
+            // Not enabled, not enrolling → start.
+            else -> {
+                Button(
+                    onClick = viewModel::beginTotp,
+                    enabled = !state.busy,
+                    modifier = Modifier.padding(top = 12.dp),
+                ) { Text(stringResource(R.string.account_totp_setup)) }
+            }
+        }
+        SectionFeedback(state.feedback, Section.TOTP)
+    }
+}
+
+@Composable
+private fun IdentitiesSection(state: AccountViewModel.State, viewModel: AccountViewModel) {
+    SectionCard(R.string.account_identities_title) {
+        if (state.identities.isEmpty()) {
+            Text(
+                stringResource(R.string.account_identities_empty),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(top = 8.dp),
+            )
+        } else {
+            state.identities.forEach { identity -> IdentityRow(identity, state.busy, viewModel) }
+        }
+        SectionFeedback(state.feedback, Section.IDENTITY)
+    }
+}
+
+@Composable
+private fun IdentityRow(identity: LinkedIdentityDto, busy: Boolean, viewModel: AccountViewModel) {
+    Row(
+        Modifier.fillMaxWidth().padding(top = 12.dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Column(Modifier.weight(1f)) {
+            Text(
+                identity.provider.replaceFirstChar { it.uppercase() },
+                style = MaterialTheme.typography.bodyLarge,
+            )
+            identity.email?.let {
+                Text(it, style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+            }
+        }
+        TextButton(onClick = { viewModel.unlinkIdentity(identity.provider) }, enabled = !busy) {
+            Text(stringResource(R.string.account_identity_unlink))
+        }
+    }
+}
+
+@Composable
+private fun CodeField(code: String, onChange: (String) -> Unit, enabled: Boolean) {
+    OutlinedTextField(
+        value = code,
+        onValueChange = { onChange(it.filter(Char::isDigit).take(8)) },
+        singleLine = true,
+        enabled = enabled,
+        label = { Text(stringResource(R.string.login_totp_code)) },
+        keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.NumberPassword),
+        modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+    )
+}
+
+@Composable
+private fun SectionFeedback(feedback: Feedback?, section: Section) {
+    if (feedback == null || feedback.section != section) return
+    Text(
+        text = stringResource(feedback.messageRes),
+        style = MaterialTheme.typography.bodySmall,
+        color = if (feedback.ok) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error,
+        modifier = Modifier.padding(top = 10.dp),
+    )
+}
+
+/** Decode a `data:image/png;base64,…` URL (the TOTP QR) into an [ImageBitmap]. */
+@Composable
+private fun rememberQrBitmap(dataUrl: String?): ImageBitmap? = remember(dataUrl) {
+    if (dataUrl.isNullOrBlank()) return@remember null
+    val comma = dataUrl.indexOf(',')
+    if (comma < 0) return@remember null
+    runCatching {
+        val bytes = Base64.decode(dataUrl.substring(comma + 1), Base64.DEFAULT)
+        BitmapFactory.decodeByteArray(bytes, 0, bytes.size)?.asImageBitmap()
+    }.getOrNull()
+}
+
+/** Human label for a role (advisory display only — §4.3). */
+@StringRes
+fun roleLabelRes(role: Role): Int = when (role) {
+    Role.PLAYER -> R.string.role_player
+    Role.MODERATOR -> R.string.role_moderator
+    Role.EDITOR -> R.string.role_editor
+    Role.ADMIN -> R.string.role_admin
+    Role.UNKNOWN -> R.string.role_unknown
+}

app/src/main/java/com/runicgateway/app/ui/auth/AccountViewModel.kt

@@ -0,0 +1,185 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.auth
+
+import androidx.annotation.StringRes
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.R
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.data.api.dto.LinkedIdentityDto
+import com.runicgateway.app.data.api.dto.PlayerAccountDto
+import com.runicgateway.app.data.api.dto.TotpSetupDto
+import com.runicgateway.app.data.repository.AccountRepository
+import com.runicgateway.app.data.repository.AuthRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * Drives the signed-in self-service surface (PLAN.md §6.3, §6.4) over
+ * `/auth/me/account*`: change username/password, enroll/disable TOTP, and manage
+ * linked SSO identities. Each mutation folds its [ApiResult] into a section-scoped
+ * [Feedback] so the screen shows friendly, localized copy inline (§7). A username
+ * change also re-validates the session so the shell reflects the new name at once.
+ */
+@HiltViewModel
+class AccountViewModel @Inject constructor(
+    private val accountRepository: AccountRepository,
+    private val authRepository: AuthRepository,
+) : ViewModel() {
+
+    /** Which section an action's [Feedback] belongs to, so it renders in place. */
+    enum class Section { USERNAME, PASSWORD, TOTP, IDENTITY }
+
+    /** A one-shot result banner under a section. */
+    data class Feedback(val section: Section, val ok: Boolean, @param:StringRes val messageRes: Int)
+
+    data class State(
+        val account: UiState<PlayerAccountDto> = UiState.Loading,
+        val identities: List<LinkedIdentityDto> = emptyList(),
+        /** True while any mutation is in flight (disables that section's controls). */
+        val busy: Boolean = false,
+        /** The pending TOTP enrollment (QR shown) between setup and enable. */
+        val totpSetup: TotpSetupDto? = null,
+        val feedback: Feedback? = null,
+    )
+
+    private val _state = MutableStateFlow(State())
+    val state: StateFlow<State> = _state.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun load() {
+        _state.update { it.copy(account = UiState.Loading) }
+        viewModelScope.launch {
+            val account = accountRepository.getAccount()
+            _state.update { it.copy(account = account.toUiState()) }
+            // Identities are non-critical — an empty list on failure is fine.
+            when (val ids = accountRepository.identities()) {
+                is ApiResult.Ok -> _state.update { it.copy(identities = ids.data) }
+                else -> Unit
+            }
+        }
+    }
+
+    fun clearFeedback() = _state.update { it.copy(feedback = null) }
+
+    // ── Username ─────────────────────────────────────────────────────────
+    fun changeUsername(username: String) {
+        if (_state.value.busy) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (val result = accountRepository.changeUsername(username.trim())) {
+                is ApiResult.Ok -> {
+                    finish(Section.USERNAME, true, R.string.account_username_changed)
+                    // Reflect the new name in the shell + refresh the loaded account.
+                    authRepository.revalidate()
+                    reloadAccount()
+                }
+                else -> finish(Section.USERNAME, false, usernameErrorRes(result))
+            }
+        }
+    }
+
+    // ── Password ─────────────────────────────────────────────────────────
+    fun changePassword(newPassword: String, currentPassword: String?) {
+        if (_state.value.busy) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (accountRepository.changePassword(newPassword, currentPassword?.takeIf { it.isNotBlank() })) {
+                is ApiResult.Ok -> finish(Section.PASSWORD, true, R.string.account_password_changed)
+                is ApiResult.HttpError -> finish(Section.PASSWORD, false, R.string.account_password_error)
+                is ApiResult.NetworkError -> finish(Section.PASSWORD, false, R.string.error_network)
+            }
+        }
+    }
+
+    // ── TOTP ─────────────────────────────────────────────────────────────
+    fun beginTotp() {
+        if (_state.value.busy) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (val result = accountRepository.totpSetup()) {
+                is ApiResult.Ok -> _state.update { it.copy(busy = false, totpSetup = result.data) }
+                else -> finish(Section.TOTP, false, R.string.account_totp_setup_error)
+            }
+        }
+    }
+
+    fun cancelTotp() = _state.update { it.copy(totpSetup = null, feedback = null) }
+
+    fun enableTotp(code: String) {
+        if (_state.value.busy) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (accountRepository.totpEnable(code.trim())) {
+                is ApiResult.Ok -> {
+                    _state.update { it.copy(totpSetup = null) }
+                    finish(Section.TOTP, true, R.string.account_totp_enabled)
+                    reloadAccount()
+                }
+                is ApiResult.HttpError -> finish(Section.TOTP, false, R.string.account_totp_code_error)
+                is ApiResult.NetworkError -> finish(Section.TOTP, false, R.string.error_network)
+            }
+        }
+    }
+
+    fun disableTotp(code: String) {
+        if (_state.value.busy) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (accountRepository.totpDisable(code.trim())) {
+                is ApiResult.Ok -> {
+                    finish(Section.TOTP, true, R.string.account_totp_disabled)
+                    reloadAccount()
+                }
+                is ApiResult.HttpError -> finish(Section.TOTP, false, R.string.account_totp_code_error)
+                is ApiResult.NetworkError -> finish(Section.TOTP, false, R.string.error_network)
+            }
+        }
+    }
+
+    // ── Identities ───────────────────────────────────────────────────────
+    fun unlinkIdentity(provider: String) {
+        if (_state.value.busy) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (accountRepository.unlinkIdentity(provider)) {
+                is ApiResult.Ok -> {
+                    finish(Section.IDENTITY, true, R.string.account_identity_unlinked)
+                    when (val ids = accountRepository.identities()) {
+                        is ApiResult.Ok -> _state.update { it.copy(identities = ids.data) }
+                        else -> Unit
+                    }
+                }
+                else -> finish(Section.IDENTITY, false, R.string.account_identity_error)
+            }
+        }
+    }
+
+    private suspend fun reloadAccount() {
+        when (val account = accountRepository.getAccount()) {
+            is ApiResult.Ok -> _state.update { it.copy(account = UiState.Success(account.data)) }
+            else -> Unit
+        }
+    }
+
+    private fun finish(section: Section, ok: Boolean, @StringRes messageRes: Int) =
+        _state.update { it.copy(busy = false, feedback = Feedback(section, ok, messageRes)) }
+
+    private fun usernameErrorRes(result: ApiResult<*>): Int = when {
+        result is ApiResult.HttpError && result.status == 409 -> R.string.account_username_taken
+        result is ApiResult.NetworkError -> R.string.error_network
+        else -> R.string.account_username_error
+    }
+}

app/src/main/java/com/runicgateway/app/ui/auth/LoginScreen.kt

@@ -0,0 +1,184 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.auth
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.core.web.WebHandoff
+import com.runicgateway.app.ui.auth.LoginViewModel.LoginError
+
+/**
+ * Native username/password (+TOTP) login (PLAN.md §4.1) — the app's only native
+ * credential screen. Registration, forgot-password, and SSO are website hand-offs
+ * opened in a Custom Tab (§4.2); the user completes them in the browser and
+ * returns here to sign in.
+ */
+@Composable
+fun LoginScreen(
+    onSignedIn: () -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: LoginViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    val context = LocalContext.current
+
+    LaunchedEffect(state.signedIn) {
+        if (state.signedIn) onSignedIn()
+    }
+
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState())
+            .padding(24.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        Text(
+            text = stringResource(R.string.login_title),
+            style = MaterialTheme.typography.headlineSmall,
+            textAlign = TextAlign.Center,
+        )
+        Text(
+            text = stringResource(R.string.login_subtitle),
+            style = MaterialTheme.typography.bodyMedium,
+            textAlign = TextAlign.Center,
+            modifier = Modifier.padding(top = 8.dp, bottom = 24.dp),
+        )
+
+        OutlinedTextField(
+            value = state.username,
+            onValueChange = viewModel::onUsernameChange,
+            singleLine = true,
+            enabled = !state.submitting,
+            label = { Text(stringResource(R.string.login_username)) },
+            keyboardOptions = KeyboardOptions(
+                keyboardType = KeyboardType.Text,
+                imeAction = ImeAction.Next,
+            ),
+            modifier = Modifier.fillMaxWidth(),
+        )
+
+        OutlinedTextField(
+            value = state.password,
+            onValueChange = viewModel::onPasswordChange,
+            singleLine = true,
+            enabled = !state.submitting,
+            label = { Text(stringResource(R.string.login_password)) },
+            visualTransformation = PasswordVisualTransformation(),
+            keyboardOptions = KeyboardOptions(
+                keyboardType = KeyboardType.Password,
+                imeAction = if (state.totpRequired) ImeAction.Next else ImeAction.Go,
+            ),
+            keyboardActions = KeyboardActions(onGo = { viewModel.submit() }),
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(top = 12.dp),
+        )
+
+        if (state.totpRequired) {
+            OutlinedTextField(
+                value = state.code,
+                onValueChange = viewModel::onCodeChange,
+                singleLine = true,
+                enabled = !state.submitting,
+                label = { Text(stringResource(R.string.login_totp_code)) },
+                supportingText = { Text(stringResource(R.string.login_totp_hint)) },
+                keyboardOptions = KeyboardOptions(
+                    keyboardType = KeyboardType.NumberPassword,
+                    imeAction = ImeAction.Go,
+                ),
+                keyboardActions = KeyboardActions(onGo = { viewModel.submit() }),
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(top = 12.dp),
+            )
+        }
+
+        state.error?.let { err ->
+            Text(
+                text = stringResource(loginErrorRes(err)),
+                color = MaterialTheme.colorScheme.error,
+                style = MaterialTheme.typography.bodyMedium,
+                textAlign = TextAlign.Center,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(top = 12.dp),
+            )
+        }
+
+        Button(
+            onClick = viewModel::submit,
+            enabled = !state.submitting,
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(top = 20.dp),
+        ) {
+            if (state.submitting) {
+                CircularProgressIndicator(
+                    strokeWidth = 2.dp,
+                    modifier = Modifier.size(20.dp),
+                    color = MaterialTheme.colorScheme.onPrimary,
+                )
+            } else {
+                Text(stringResource(R.string.login_button))
+            }
+        }
+
+        // ── Website hand-offs (§4.2): open the site's own pages in a Custom Tab ──
+        viewModel.registerUrl?.let { url ->
+            TextButton(
+                onClick = { WebHandoff.open(context, url) },
+                modifier = Modifier.padding(top = 16.dp),
+            ) { Text(stringResource(R.string.login_register)) }
+        }
+        viewModel.forgotPasswordUrl?.let { url ->
+            TextButton(onClick = { WebHandoff.open(context, url) }) {
+                Text(stringResource(R.string.login_forgot))
+            }
+        }
+        viewModel.ssoLoginUrl?.let { url ->
+            TextButton(onClick = { WebHandoff.open(context, url) }) {
+                Text(stringResource(R.string.login_sso))
+            }
+        }
+    }
+}
+
+private fun loginErrorRes(error: LoginError): Int = when (error) {
+    LoginError.INVALID_CREDENTIALS -> R.string.login_error_credentials
+    LoginError.BAD_CODE -> R.string.login_error_code
+    LoginError.RATE_LIMITED -> R.string.login_error_rate_limited
+    LoginError.SERVER -> R.string.login_error_server
+    LoginError.NETWORK -> R.string.login_error_network
+}

app/src/main/java/com/runicgateway/app/ui/auth/LoginViewModel.kt

@@ -0,0 +1,101 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.auth
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.web.WebsiteUrls
+import com.runicgateway.app.data.repository.AuthRepository
+import com.runicgateway.app.data.repository.AuthRepository.LoginResult
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * Drives the native login screen (PLAN.md §4.1): username/password, single-request
+ * TOTP (the code field is revealed once the backend answers `totpRequired`), and
+ * friendly 429 backoff handling. Registration / forgot-password / SSO are website
+ * hand-offs whose URLs it exposes (§4.2).
+ */
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    private val authRepository: AuthRepository,
+    private val websiteUrls: WebsiteUrls,
+) : ViewModel() {
+
+    /** The transient error surfaced under the form after a failed attempt. */
+    enum class LoginError { INVALID_CREDENTIALS, BAD_CODE, RATE_LIMITED, SERVER, NETWORK }
+
+    data class UiState(
+        val username: String = "",
+        val password: String = "",
+        val code: String = "",
+        /** True once the account is known to have 2FA on — reveal the code field. */
+        val totpRequired: Boolean = false,
+        val submitting: Boolean = false,
+        val error: LoginError? = null,
+        val signedIn: Boolean = false,
+    )
+
+    private val _state = MutableStateFlow(UiState())
+    val state: StateFlow<UiState> = _state.asStateFlow()
+
+    fun onUsernameChange(value: String) = _state.update { it.copy(username = value, error = null) }
+    fun onPasswordChange(value: String) = _state.update { it.copy(password = value, error = null) }
+    fun onCodeChange(value: String) =
+        _state.update { it.copy(code = value.filter(Char::isDigit).take(8), error = null) }
+
+    val registerUrl: String? get() = websiteUrls.register()
+    val forgotPasswordUrl: String? get() = websiteUrls.forgotPassword()
+    val ssoLoginUrl: String? get() = websiteUrls.login()
+
+    fun submit() {
+        val s = _state.value
+        if (s.submitting) return
+        if (s.username.isBlank() || s.password.isBlank()) {
+            _state.update { it.copy(error = LoginError.INVALID_CREDENTIALS) }
+            return
+        }
+        // If 2FA is being requested, a code must accompany the resubmit.
+        if (s.totpRequired && s.code.isBlank()) {
+            _state.update { it.copy(error = LoginError.BAD_CODE) }
+            return
+        }
+
+        _state.update { it.copy(submitting = true, error = null) }
+        viewModelScope.launch {
+            val code = s.code.trim().takeIf { it.isNotBlank() }
+            when (authRepository.login(s.username.trim(), s.password, code)) {
+                LoginResult.Success ->
+                    _state.update { it.copy(submitting = false, signedIn = true) }
+
+                LoginResult.TotpRequired ->
+                    // Reveal the code field; a wrong code re-lands here as BAD_CODE.
+                    _state.update {
+                        it.copy(
+                            submitting = false,
+                            totpRequired = true,
+                            error = if (it.code.isNotBlank()) LoginError.BAD_CODE else null,
+                        )
+                    }
+
+                LoginResult.InvalidCredentials ->
+                    _state.update { it.copy(submitting = false, error = LoginError.INVALID_CREDENTIALS) }
+
+                LoginResult.RateLimited ->
+                    _state.update { it.copy(submitting = false, error = LoginError.RATE_LIMITED) }
+
+                LoginResult.ServerError ->
+                    _state.update { it.copy(submitting = false, error = LoginError.SERVER) }
+
+                LoginResult.NetworkError ->
+                    _state.update { it.copy(submitting = false, error = LoginError.NETWORK) }
+            }
+        }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/components/ThemeComponents.kt

@@ -0,0 +1,148 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.components
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+import com.runicgateway.app.ui.theme.ShardCardBottom
+import com.runicgateway.app.ui.theme.ShardCardTop
+import com.runicgateway.app.ui.theme.ShardDanger
+import com.runicgateway.app.ui.theme.ShardDangerBg
+import com.runicgateway.app.ui.theme.ShardElevated
+import com.runicgateway.app.ui.theme.ShardFaint
+import com.runicgateway.app.ui.theme.ShardOutline
+import com.runicgateway.app.ui.theme.ShardPillBg
+import com.runicgateway.app.ui.theme.ShardPillFg
+import com.runicgateway.app.ui.theme.ShardSuccess
+import com.runicgateway.app.ui.theme.ShardSuccessBg
+import com.runicgateway.app.ui.theme.ShardSuccessDot
+import com.runicgateway.app.ui.theme.ShardWarning
+import com.runicgateway.app.ui.theme.ShardWarningBg
+
+/**
+ * Shared visual building blocks for the M5 shard-website design pass
+ * (docs/android/PLAN.md §M5): the recurring pill, section-label, feature-card,
+ * and stat-bar motifs the mockup repeats across screens. Pure presentation —
+ * no state, no data dependencies — so any screen can adopt them.
+ */
+
+/** Semantic tone for a [StatusPill] / [OnlineDot]. */
+enum class PillTone { Success, Warning, Danger, Neutral, Info }
+
+private data class PillColors(val fg: Color, val bg: Color)
+
+private fun toneColors(tone: PillTone): PillColors = when (tone) {
+    PillTone.Success -> PillColors(ShardSuccess, ShardSuccessBg)
+    PillTone.Warning -> PillColors(ShardWarning, ShardWarningBg)
+    PillTone.Danger -> PillColors(ShardDanger, ShardDangerBg)
+    PillTone.Neutral, PillTone.Info -> PillColors(ShardPillFg, ShardPillBg)
+}
+
+/**
+ * A small uppercase status chip — "Live", "Up", "Enabled", "IDOC", a role — with a
+ * rounded filled background tinted by [tone]. Mirrors the mockup's pill badges.
+ */
+@Composable
+fun StatusPill(text: String, tone: PillTone, modifier: Modifier = Modifier) {
+    val c = toneColors(tone)
+    Surface(color = c.bg, shape = CircleShape, modifier = modifier) {
+        Text(
+            text = text.uppercase(),
+            style = MaterialTheme.typography.labelSmall,
+            color = c.fg,
+            modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp),
+        )
+    }
+}
+
+/** The small colored status dot (green when live), matched to a [PillTone]. */
+@Composable
+fun OnlineDot(tone: PillTone, modifier: Modifier = Modifier) {
+    val color = when (tone) {
+        PillTone.Success -> ShardSuccessDot
+        PillTone.Warning -> ShardWarning
+        PillTone.Danger -> ShardDanger
+        PillTone.Neutral, PillTone.Info -> ShardFaint
+    }
+    Box(modifier.size(8.dp).clip(CircleShape).background(color))
+}
+
+/**
+ * The muted, uppercase, letter-spaced section header the design uses above grouped
+ * content ("Attributes", "Vitals", "Password", "Linked accounts").
+ */
+@Composable
+fun SectionLabel(text: String, modifier: Modifier = Modifier) {
+    Text(
+        text = text.uppercase(),
+        style = MaterialTheme.typography.labelSmall,
+        color = ShardFaint,
+        modifier = modifier,
+    )
+}
+
+/**
+ * The elevated "feature" card: a vertical blue gradient with a hairline outline and
+ * soft shadow, used for the home status card, the shard-online banner, and the
+ * vendor card. [content] is laid out in a padded [Column].
+ */
+@Composable
+fun FeatureCard(
+    modifier: Modifier = Modifier,
+    contentPadding: Int = 18,
+    content: @Composable ColumnScope.() -> Unit,
+) {
+    Box(
+        modifier = modifier
+            .fillMaxWidth()
+            .clip(RoundedCornerShape(12.dp))
+            .background(Brush.verticalGradient(listOf(ShardCardTop, ShardCardBottom)))
+            .border(1.dp, ShardOutline, RoundedCornerShape(12.dp)),
+    ) {
+        Column(Modifier.padding(contentPadding.dp), content = content)
+    }
+}
+
+/**
+ * A slim rounded meter (vitals / skills). [fraction] is clamped to 0..1; the fill is
+ * the slate accent over a bordered dark track.
+ */
+@Composable
+fun StatBar(fraction: Float, modifier: Modifier = Modifier) {
+    val pct = fraction.coerceIn(0f, 1f)
+    Box(
+        modifier = modifier
+            .fillMaxWidth()
+            .height(6.dp)
+            .clip(RoundedCornerShape(3.dp))
+            .background(ShardElevated)
+            .border(1.dp, ShardOutline, RoundedCornerShape(3.dp)),
+    ) {
+        Box(
+            Modifier
+                .fillMaxWidth(pct)
+                .height(6.dp)
+                .clip(RoundedCornerShape(3.dp))
+                .background(MaterialTheme.colorScheme.secondary),
+        )
+    }
+}

app/src/main/java/com/runicgateway/app/ui/connect/ConnectScreen.kt

@@ -107,6 +107,7 @@ private fun errorMessage(error: ConnectError): String = when (error) {
     ConnectError.UnsupportedScheme -> stringResource(R.string.connect_error_scheme)
     ConnectError.Insecure -> stringResource(R.string.connect_error_insecure)
     ConnectError.NotRunicGateway -> stringResource(R.string.connect_error_not_runic)
+    is ConnectError.VersionMismatch -> stringResource(R.string.connect_error_version, error.serverApi)
     ConnectError.Unreachable -> stringResource(R.string.connect_error_unreachable)
     is ConnectError.Server -> stringResource(R.string.connect_error_server, error.status)
 }

app/src/main/java/com/runicgateway/app/ui/connect/ConnectViewModel.kt

@@ -32,6 +32,7 @@ class ConnectViewModel @Inject constructor(
         data object UnsupportedScheme : ConnectError
         data object Insecure : ConnectError
         data object NotRunicGateway : ConnectError
+        data class VersionMismatch(val serverApi: String) : ConnectError
         data object Unreachable : ConnectError
         data class Server(val status: Int) : ConnectError
     }
@@ -61,6 +62,7 @@ class ConnectViewModel @Inject constructor(
                 }
                 is ProbeResult.InvalidUrl -> fail(result.reason.toError())
                 ProbeResult.NotRunicGateway -> fail(ConnectError.NotRunicGateway)
+                is ProbeResult.VersionMismatch -> fail(ConnectError.VersionMismatch(result.serverApi))
                 is ProbeResult.Unreachable -> fail(ConnectError.Unreachable)
                 is ProbeResult.ServerError -> fail(ConnectError.Server(result.status))
             }

app/src/main/java/com/runicgateway/app/ui/home/HomeScreen.kt

@@ -4,19 +4,19 @@
 package com.runicgateway.app.ui.home
 
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.Card
-import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
@@ -27,7 +27,10 @@ import com.runicgateway.app.data.api.dto.BrandDto
 import com.runicgateway.app.data.api.dto.StatusDto
 import com.runicgateway.app.ui.UiState
 import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.FeatureCard
 import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.OnlineDot
+import com.runicgateway.app.ui.components.PillTone
 
 /**
  * Home / status (PLAN.md §6.1): the shard's name + tagline from branding, and a
@@ -83,40 +86,37 @@ private fun HomeContent(brand: BrandDto?, status: StatusDto, modifier: Modifier
 @Composable
 private fun StatusCard(status: StatusDto) {
     val online = !status.isMaintenance
-    val containerColor =
-        if (online) MaterialTheme.colorScheme.secondaryContainer
-        else MaterialTheme.colorScheme.errorContainer
 
-    Card(
-        modifier = Modifier.fillMaxWidth(),
-        colors = CardDefaults.cardColors(containerColor = containerColor),
-    ) {
-        Column(Modifier.padding(16.dp)) {
+    FeatureCard {
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            OnlineDot(if (online) PillTone.Success else PillTone.Danger)
+            Spacer(Modifier.width(10.dp))
             Text(
                 text = stringResource(
                     if (online) R.string.home_status_live else R.string.home_status_maintenance,
                 ),
-                style = MaterialTheme.typography.titleLarge,
+                style = MaterialTheme.typography.titleMedium,
+                color = MaterialTheme.colorScheme.onSurface,
+            )
+        }
+        if (status.isMaintenance && status.statusMessage.isNotBlank()) {
+            Text(
+                text = status.statusMessage,
+                style = MaterialTheme.typography.bodyMedium,
+                modifier = Modifier.padding(top = 6.dp),
+            )
+        }
+        if (status.version.server.isNotBlank()) {
+            Text(
+                text = stringResource(
+                    R.string.home_server_version,
+                    status.version.server,
+                    status.version.api,
+                ),
+                style = MaterialTheme.typography.labelMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(top = 10.dp),
             )
-            if (status.isMaintenance && status.statusMessage.isNotBlank()) {
-                Text(
-                    text = status.statusMessage,
-                    style = MaterialTheme.typography.bodyMedium,
-                    modifier = Modifier.padding(top = 6.dp),
-                )
-            }
-            if (status.version.server.isNotBlank()) {
-                Text(
-                    text = stringResource(
-                        R.string.home_server_version,
-                        status.version.server,
-                        status.version.api,
-                    ),
-                    style = MaterialTheme.typography.labelMedium,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    modifier = Modifier.padding(top = 10.dp),
-                )
-            }
         }
     }
 }

app/src/main/java/com/runicgateway/app/ui/navigation/Menu.kt

@@ -0,0 +1,63 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.navigation
+
+import androidx.annotation.StringRes
+import com.runicgateway.app.R
+import com.runicgateway.app.core.auth.Session
+
+/**
+ * One shared, declarative, access-level navigation definition (PLAN.md §5): a
+ * single list where each entry declares the minimum access it needs, filtered by
+ * the current session — not a pile of `if role ==` checks. The server stays the
+ * source of truth; a hidden item is a UX convenience and every gated call still
+ * enforces on the backend.
+ */
+enum class MenuAccess {
+    /** Visible to everyone, signed in or not. */
+    PUBLIC,
+
+    /** Visible to any signed-in account (§5, "My Account"). */
+    SIGNED_IN,
+
+    /** Visible only to a player — the linked game-data groups (§6.3). */
+    PLAYER,
+}
+
+data class MenuEntry(
+    val route: String,
+    @param:StringRes val labelRes: Int,
+    val access: MenuAccess = MenuAccess.PUBLIC,
+)
+
+/**
+ * The full menu, in display order. Public content first, then the signed-in
+ * surfaces, then the player-only game-data groups (revealed once the session's
+ * role is `player`, §6.3).
+ */
+val APP_MENU: List<MenuEntry> = listOf(
+    MenuEntry(Routes.HOME, R.string.menu_home),
+    MenuEntry(Routes.NEWS, R.string.menu_news),
+    MenuEntry(Routes.WIKI, R.string.menu_wiki),
+    MenuEntry(Routes.SHARD, R.string.menu_shard),
+    MenuEntry(Routes.page("about"), R.string.menu_about),
+    MenuEntry(Routes.CONTACT, R.string.menu_contact),
+    MenuEntry(Routes.ACCOUNT, R.string.menu_account, MenuAccess.SIGNED_IN),
+    MenuEntry(Routes.PLAYER_CHARACTERS, R.string.menu_my_characters, MenuAccess.PLAYER),
+    MenuEntry(Routes.PLAYER_VENDORS, R.string.menu_my_vendors, MenuAccess.PLAYER),
+    MenuEntry(Routes.PLAYER_HOUSES, R.string.menu_my_houses, MenuAccess.PLAYER),
+)
+
+/**
+ * The entries the given [session] may see. Pure + side-effect-free so the access
+ * gating is unit-tested without Compose.
+ */
+fun visibleEntries(entries: List<MenuEntry>, session: Session): List<MenuEntry> =
+    entries.filter { entry ->
+        when (entry.access) {
+            MenuAccess.PUBLIC -> true
+            MenuAccess.SIGNED_IN -> session is Session.SignedIn
+            MenuAccess.PLAYER -> session is Session.SignedIn && session.user.isPlayer
+        }
+    }

app/src/main/java/com/runicgateway/app/ui/navigation/Routes.kt

@@ -14,6 +14,10 @@ object Routes {
     const val WIKI = "wiki"
     const val CONTACT = "contact"
 
+    /** Native login (§4.1) and the signed-in account surface (§5). */
+    const val LOGIN = "login"
+    const val ACCOUNT = "account"
+
     /** Public shard hub (§6.2). */
     const val SHARD = "shard"
 
@@ -23,6 +27,14 @@ object Routes {
     const val SHARD_GOVERNORS = "shard/governors"
     const val SHARD_HOUSES = "shard/houses"
 
+    /** Player game-data groups (§6.3, player-only). Distinct from the public shard boards. */
+    const val PLAYER_CHARACTERS = "player/characters"
+    const val PLAYER_VENDORS = "player/vendors"
+    const val PLAYER_HOUSES = "player/houses"
+
+    /** A single character sheet by in-game (hex) serial. */
+    const val PLAYER_CHAR = "player/char/{serial}"
+
     /** CMS page by slug (e.g. the conventional "about" page, mirrored from the site nav). */
     const val PAGE = "page/{slug}"
 
@@ -36,9 +48,13 @@ object Routes {
         const val SLUG = "slug"
         const val CATEGORY = "category"
         const val ID_OR_SLUG = "idOrSlug"
+        const val SERIAL = "serial"
     }
 
     fun page(slug: String) = "page/$slug"
     fun post(categoryUrlSlug: String, idOrSlug: String) = "news/$categoryUrlSlug/$idOrSlug"
     fun wikiPage(slug: String) = "wiki/$slug"
+
+    /** The character-sheet route for an in-game serial (e.g. "0x24C"). */
+    fun playerChar(serial: String) = "player/char/$serial"
 }

app/src/main/java/com/runicgateway/app/ui/player/CharacterSheetScreen.kt

@@ -0,0 +1,288 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.CharProfileDto
+import com.runicgateway.app.data.api.dto.CharStatsDto
+import com.runicgateway.app.data.api.dto.EquipmentDto
+import com.runicgateway.app.data.api.dto.ResistDto
+import com.runicgateway.app.data.api.dto.SkillDto
+import com.runicgateway.app.data.api.dto.TitlesDto
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.SectionLabel
+import com.runicgateway.app.ui.components.StatBar
+import kotlinx.serialization.json.jsonPrimitive
+
+/**
+ * A text-only character sheet (PLAN.md §6.3): identity + standing, attributes and
+ * vitals, resistances, skills, and equipment. No item icons / paperdoll art — a
+ * richer view is a future enhancement pending the platform art work.
+ */
+@Composable
+fun CharacterSheetScreen(
+    modifier: Modifier = Modifier,
+    viewModel: CharacterViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    when (val s = state) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::load, modifier = modifier)
+        is UiState.Success -> CharacterSheet(s.data, modifier)
+    }
+}
+
+@Composable
+private fun CharacterSheet(char: CharProfileDto, modifier: Modifier = Modifier) {
+    Column(
+        modifier = modifier
+            .fillMaxSize()
+            .verticalScroll(rememberScrollState())
+            .padding(16.dp),
+        verticalArrangement = Arrangement.spacedBy(16.dp),
+    ) {
+        IdentityBlock(char)
+        StandingChips(char)
+        char.stats?.let { AttributesBlock(it) }
+        char.stats?.resist?.let { ResistancesBlock(it) }
+        SkillsBlock(char.skills)
+        EquipmentBlock(char.equipment)
+    }
+}
+
+@Composable
+private fun IdentityBlock(char: CharProfileDto) {
+    Column {
+        Text(
+            char.name ?: stringResource(R.string.player_char_unknown),
+            style = MaterialTheme.typography.headlineSmall,
+        )
+        char.title?.takeIf { it.isNotBlank() }?.let {
+            Text(it, style = MaterialTheme.typography.bodyMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+        Row(Modifier.padding(top = 4.dp)) {
+            Text(
+                stringResource(if (char.online) R.string.player_char_online else R.string.player_char_offline),
+                style = MaterialTheme.typography.labelMedium,
+                color = if (char.online) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            char.serial?.let {
+                Text(
+                    "  ·  $it",
+                    style = MaterialTheme.typography.labelMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+private fun StandingChips(char: CharProfileDto) {
+    val chips = buildList {
+        char.governorOf.forEach { add(stringResource(R.string.player_char_governor, it)) }
+        char.guild?.let { g ->
+            val abbr = g.abbr?.let { " [$it]" } ?: ""
+            add(stringResource(R.string.player_char_guildmaster, "${g.name.orEmpty()}$abbr"))
+        }
+        addAll(displayTitles(char.titles))
+    }
+    if (chips.isEmpty()) return
+    FlowRow(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+        chips.forEach { Chip(it) }
+    }
+}
+
+@Composable
+private fun Chip(text: String) {
+    Surface(
+        color = MaterialTheme.colorScheme.secondaryContainer,
+        shape = MaterialTheme.shapes.small,
+    ) {
+        Text(
+            text,
+            style = MaterialTheme.typography.labelMedium,
+            color = MaterialTheme.colorScheme.onSecondaryContainer,
+            modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp),
+        )
+    }
+}
+
+@Composable
+private fun AttributesBlock(stats: CharStatsDto) {
+    SheetCard(R.string.player_char_attributes) {
+        Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+            Stat(stringResource(R.string.player_char_str), stats.str)
+            Stat(stringResource(R.string.player_char_dex), stats.dex)
+            Stat(stringResource(R.string.player_char_int), stats.int)
+        }
+        Column(Modifier.padding(top = 16.dp)) {
+            SectionLabel(stringResource(R.string.player_char_vitals))
+            Column(Modifier.padding(top = 8.dp)) {
+                Vital(stringResource(R.string.player_char_hits), stats.hits, stats.hitsMax)
+                Vital(stringResource(R.string.player_char_mana), stats.mana, stats.manaMax)
+                Vital(stringResource(R.string.player_char_stam), stats.stam, stats.stamMax)
+            }
+        }
+    }
+}
+
+@Composable
+private fun Stat(label: String, value: Int?) {
+    Column {
+        Text("${value ?: "—"}", style = MaterialTheme.typography.titleLarge)
+        Text(label, style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+    }
+}
+
+@Composable
+private fun Vital(label: String, cur: Int?, max: Int?) {
+    Column(Modifier.padding(vertical = 5.dp)) {
+        Row(Modifier.fillMaxWidth().padding(bottom = 4.dp), horizontalArrangement = Arrangement.SpaceBetween) {
+            Text(label, style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+            Text("${cur ?: "—"} / ${max ?: "—"}", style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+        val fraction = if (max != null && max > 0 && cur != null) cur.toFloat() / max else 0f
+        StatBar(fraction)
+    }
+}
+
+@Composable
+private fun ResistancesBlock(resist: ResistDto) {
+    val rows = listOf(
+        stringResource(R.string.player_char_phys) to resist.phys,
+        stringResource(R.string.player_char_fire) to resist.fire,
+        stringResource(R.string.player_char_cold) to resist.cold,
+        stringResource(R.string.player_char_pois) to resist.pois,
+        stringResource(R.string.player_char_energy) to resist.energy,
+    )
+    if (rows.all { it.second == null }) return
+    SheetCard(R.string.player_char_resistances) {
+        Row(Modifier.fillMaxWidth().padding(top = 4.dp), horizontalArrangement = Arrangement.SpaceBetween) {
+            rows.forEach { (label, value) ->
+                Column {
+                    Text("${value ?: 0}", style = MaterialTheme.typography.titleMedium)
+                    Text(label, style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun SkillsBlock(skills: List<SkillDto>) {
+    val shown = skills
+        .filter { (it.value ?: it.base ?: 0.0) > 0.0 }
+        .sortedByDescending { it.value ?: 0.0 }
+    if (shown.isEmpty()) return
+    SheetCard(R.string.player_char_skills) {
+        shown.forEach { skill ->
+            val value = skill.value ?: 0.0
+            Column(Modifier.padding(vertical = 5.dp)) {
+                Row(Modifier.fillMaxWidth().padding(bottom = 4.dp), horizontalArrangement = Arrangement.SpaceBetween) {
+                    Text(skill.n ?: "—", style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+                    Text(formatSkill(value), style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.onSurfaceVariant, fontWeight = FontWeight.Medium)
+                }
+                StatBar((value / SKILL_CAP).toFloat())
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+private fun EquipmentBlock(equipment: List<EquipmentDto>) {
+    if (equipment.isEmpty()) return
+    SheetCard(R.string.player_char_equipment) {
+        equipment.forEach { item ->
+            Column(Modifier.fillMaxWidth().padding(vertical = 6.dp)) {
+                Text(
+                    item.layer ?: stringResource(R.string.player_char_item),
+                    style = MaterialTheme.typography.bodyLarge,
+                )
+                val meta = listOfNotNull(
+                    item.itemId?.let { stringResource(R.string.player_char_item_id, it) },
+                    item.hue?.takeIf { it != 0 }?.let { stringResource(R.string.player_char_item_hue, it) },
+                ).joinToString("  ·  ")
+                if (meta.isNotBlank()) {
+                    Text(meta, style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+                }
+                val mods = item.mods.orEmpty()
+                if (mods.isNotEmpty()) {
+                    FlowRow(Modifier.padding(top = 4.dp), horizontalArrangement = Arrangement.spacedBy(6.dp)) {
+                        mods.forEach { (k, v) -> Chip("$k ${jsonText(v)}") }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun SheetCard(titleRes: Int, content: @Composable () -> Unit) {
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp)) {
+            Text(stringResource(titleRes), style = MaterialTheme.typography.titleMedium)
+            content()
+        }
+    }
+}
+
+// ── Pure helpers (unit-tested) ───────────────────────────────────────────────
+
+/** ServUO's default skill cap; used to scale the skill meter fill (0..1). */
+private const val SKILL_CAP = 120.0
+
+/** Format a skill value: drop the ".0" on whole numbers, else one decimal. */
+internal fun formatSkill(value: Double): String =
+    if (value % 1.0 == 0.0) value.toInt().toString() else "%.1f".format(value)
+
+/**
+ * The human-readable title chips for a [TitlesDto] (parity with the website's
+ * `CharacterSheet.jsx#displayTitles`): fame/karma, skill title, and the selected
+ * reward title — but only if it is a literal string, not a bare cliloc number
+ * (the app ships no cliloc table). De-duplicated, blanks dropped.
+ */
+internal fun displayTitles(titles: TitlesDto?): List<String> {
+    if (titles == null) return emptyList()
+    val out = mutableListOf<String>()
+    titles.fameKarma?.let { out.add(it) }
+    titles.skill?.let { out.add(it) }
+    val reward = titles.reward
+    val sel = titles.selected ?: -1
+    val candidate = when {
+        sel in reward.indices -> reward[sel]
+        else -> reward.firstOrNull { it.isNotBlank() && !it.all(Char::isDigit) }
+    }
+    if (candidate != null && candidate.isNotBlank() && !candidate.all(Char::isDigit)) out.add(candidate)
+    return out.filter { it.isNotBlank() }.distinct()
+}
+
+private fun jsonText(element: kotlinx.serialization.json.JsonElement): String =
+    runCatching { element.jsonPrimitive.content }.getOrElse { element.toString() }

app/src/main/java/com/runicgateway/app/ui/player/CharacterViewModel.kt

@@ -0,0 +1,48 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.data.api.dto.CharProfileDto
+import com.runicgateway.app.data.repository.PlayerShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.navigation.Routes
+import com.runicgateway.app.ui.toUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * A single character sheet (PLAN.md §6.3), read from `/player/shard/char/:serial`
+ * for a character on one of the caller's linked accounts (ownership-checked
+ * server-side). A `503` renders as offline/retry, a `403` as not-found (§7).
+ * Text-only presentation for v1.
+ */
+@HiltViewModel
+class CharacterViewModel @Inject constructor(
+    private val repository: PlayerShardRepository,
+    savedStateHandle: SavedStateHandle,
+) : ViewModel() {
+
+    private val serial: String = savedStateHandle.get<String>(Routes.Args.SERIAL).orEmpty()
+
+    private val _state = MutableStateFlow<UiState<CharProfileDto>>(UiState.Loading)
+    val state: StateFlow<UiState<CharProfileDto>> = _state.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun load() {
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            _state.value = repository.char(serial).toUiState()
+        }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/player/CharactersScreen.kt

@@ -0,0 +1,243 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.unit.dp
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.RosterCharDto
+import com.runicgateway.app.ui.ErrorKind
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.StatusPill
+
+/**
+ * The player's linked game accounts + character rosters (PLAN.md §6.3). Tapping a
+ * character opens its text-only sheet. Not-yet-linked players get the `[link` code
+ * prompt (and, when the shard offers it, a hybrid signup form).
+ */
+@Composable
+fun CharactersScreen(
+    onOpenChar: (String) -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: CharactersViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    when (val accounts = state.accounts) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(accounts.kind, onRetry = viewModel::load, modifier = modifier)
+        is UiState.Success -> Column(
+            modifier = modifier
+                .fillMaxSize()
+                .verticalScroll(rememberScrollState())
+                .padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            LinkCard(state, viewModel)
+            if (state.signupEnabled) CreateAccountCard(state, viewModel)
+
+            if (accounts.data.isEmpty()) {
+                Text(
+                    stringResource(R.string.player_characters_empty),
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            } else {
+                accounts.data.forEach { account ->
+                    AccountRoster(
+                        account = account,
+                        roster = state.rosters[account] ?: UiState.Loading,
+                        onRetry = { viewModel.loadRoster(account) },
+                        onOpenChar = onOpenChar,
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun LinkCard(state: CharactersViewModel.State, viewModel: CharactersViewModel) {
+    var code by rememberSaveable { mutableStateOf("") }
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp)) {
+            Text(stringResource(R.string.player_link_title), style = MaterialTheme.typography.titleMedium)
+            Text(
+                stringResource(R.string.player_link_hint),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(top = 6.dp),
+            )
+            OutlinedTextField(
+                value = code,
+                onValueChange = { code = it.uppercase() },
+                singleLine = true,
+                enabled = !state.busy,
+                label = { Text(stringResource(R.string.player_link_code)) },
+                modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+            )
+            Button(
+                onClick = { viewModel.link(code); code = "" },
+                enabled = !state.busy && code.isNotBlank(),
+                modifier = Modifier.padding(top = 12.dp),
+            ) { Text(stringResource(R.string.player_link_action)) }
+            FormFeedback(state.feedback)
+        }
+    }
+}
+
+@Composable
+private fun CreateAccountCard(state: CharactersViewModel.State, viewModel: CharactersViewModel) {
+    var account by rememberSaveable { mutableStateOf("") }
+    var password by rememberSaveable { mutableStateOf("") }
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp)) {
+            Text(stringResource(R.string.player_create_title), style = MaterialTheme.typography.titleMedium)
+            OutlinedTextField(
+                value = account,
+                onValueChange = { account = it },
+                singleLine = true,
+                enabled = !state.busy,
+                label = { Text(stringResource(R.string.player_create_account)) },
+                modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+            )
+            OutlinedTextField(
+                value = password,
+                onValueChange = { password = it },
+                singleLine = true,
+                enabled = !state.busy,
+                label = { Text(stringResource(R.string.player_create_password)) },
+                visualTransformation = PasswordVisualTransformation(),
+                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                modifier = Modifier.fillMaxWidth().padding(top = 12.dp),
+            )
+            Button(
+                onClick = { viewModel.createAccount(account, password); password = "" },
+                enabled = !state.busy && account.isNotBlank() && password.length >= 8,
+                modifier = Modifier.padding(top = 12.dp),
+            ) { Text(stringResource(R.string.player_create_action)) }
+        }
+    }
+}
+
+@Composable
+private fun AccountRoster(
+    account: String,
+    roster: UiState<List<RosterCharDto>>,
+    onRetry: () -> Unit,
+    onOpenChar: (String) -> Unit,
+) {
+    Column {
+        Text(
+            account,
+            style = MaterialTheme.typography.titleSmall,
+            color = MaterialTheme.colorScheme.primary,
+            modifier = Modifier.padding(vertical = 8.dp),
+        )
+        when (roster) {
+            is UiState.Loading -> Text(
+                stringResource(R.string.player_roster_loading),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            is UiState.Error -> RosterError(roster.kind, onRetry)
+            is UiState.Success -> {
+                if (roster.data.isEmpty()) {
+                    Text(
+                        stringResource(R.string.player_roster_empty),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                } else {
+                    roster.data.forEach { CharRow(it, onOpenChar) }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun RosterError(kind: ErrorKind, onRetry: () -> Unit) {
+    Row(verticalAlignment = Alignment.CenterVertically) {
+        Text(
+            stringResource(
+                if (kind == ErrorKind.SHARD_OFFLINE) R.string.error_shard_offline else R.string.error_server,
+            ),
+            style = MaterialTheme.typography.bodySmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.weight(1f),
+        )
+        TextButton(onClick = onRetry) { Text(stringResource(R.string.action_retry)) }
+    }
+}
+
+@Composable
+private fun CharRow(char: RosterCharDto, onOpenChar: (String) -> Unit) {
+    Card(
+        Modifier
+            .fillMaxWidth()
+            .padding(vertical = 4.dp)
+            .clickable(enabled = char.serial.isNotBlank()) { onOpenChar(char.serial) },
+    ) {
+        Row(
+            Modifier.fillMaxWidth().padding(14.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Text(
+                char.name ?: stringResource(R.string.player_char_unknown),
+                style = MaterialTheme.typography.bodyLarge,
+                modifier = Modifier.weight(1f),
+            )
+            StatusPill(
+                text = stringResource(
+                    if (char.online) R.string.player_char_online else R.string.player_char_offline,
+                ),
+                tone = if (char.online) PillTone.Success else PillTone.Neutral,
+                modifier = Modifier.padding(end = 8.dp),
+            )
+            Text("›", style = MaterialTheme.typography.titleMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+    }
+}
+
+@Composable
+private fun FormFeedback(feedback: CharactersViewModel.Feedback?) {
+    if (feedback == null) return
+    Text(
+        text = stringResource(feedback.messageRes),
+        style = MaterialTheme.typography.bodySmall,
+        color = if (feedback.ok) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.error,
+        modifier = Modifier.padding(top = 10.dp),
+    )
+}

app/src/main/java/com/runicgateway/app/ui/player/CharactersViewModel.kt

@@ -0,0 +1,140 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.annotation.StringRes
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.R
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.core.result.map
+import com.runicgateway.app.data.api.dto.RosterCharDto
+import com.runicgateway.app.data.repository.PlayerShardRepository
+import com.runicgateway.app.data.repository.SettingsRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The player's linked game accounts + per-account character rosters (PLAN.md §6.3):
+ * link a game account with a `[link` one-time code (or, when the shard offers it,
+ * a hybrid signup), then browse characters and open a text-only sheet. A per-account
+ * roster carries its own load state so a down shard degrades that account to a
+ * retry without blocking the rest (§7).
+ */
+@HiltViewModel
+class CharactersViewModel @Inject constructor(
+    private val repository: PlayerShardRepository,
+    private val settingsRepository: SettingsRepository,
+) : ViewModel() {
+
+    /** A one-shot banner for the link / create-account forms. */
+    data class Feedback(val ok: Boolean, @param:StringRes val messageRes: Int)
+
+    data class State(
+        val accounts: UiState<List<String>> = UiState.Loading,
+        val rosters: Map<String, UiState<List<RosterCharDto>>> = emptyMap(),
+        /** Whether the shard currently offers hybrid game-account signup. */
+        val signupEnabled: Boolean = false,
+        val busy: Boolean = false,
+        val feedback: Feedback? = null,
+    )
+
+    private val _state = MutableStateFlow(State())
+    val state: StateFlow<State> = _state.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun load() {
+        _state.update { it.copy(accounts = UiState.Loading, rosters = emptyMap()) }
+        viewModelScope.launch {
+            when (val result = repository.accounts()) {
+                is ApiResult.Ok -> {
+                    val names = result.data.map { it.account }
+                    _state.update { it.copy(accounts = UiState.Success(names)) }
+                    names.forEach { loadRoster(it) }
+                }
+                else -> _state.update { it.copy(accounts = result.map { emptyList<String>() }.toUiState()) }
+            }
+        }
+        // Non-critical: whether hybrid signup is offered right now.
+        viewModelScope.launch {
+            when (val settings = settingsRepository.getSettings()) {
+                is ApiResult.Ok -> _state.update { it.copy(signupEnabled = settings.data.gameAccountSignup) }
+                else -> Unit
+            }
+        }
+    }
+
+    fun loadRoster(account: String) {
+        _state.update { it.copy(rosters = it.rosters + (account to UiState.Loading)) }
+        viewModelScope.launch {
+            val roster = repository.roster(account).map { it.chars }.toUiState()
+            _state.update { it.copy(rosters = it.rosters + (account to roster)) }
+        }
+    }
+
+    fun clearFeedback() = _state.update { it.copy(feedback = null) }
+
+    fun link(code: String) {
+        if (_state.value.busy || code.isBlank()) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (val result = repository.link(code.trim())) {
+                is ApiResult.Ok -> {
+                    _state.update { it.copy(busy = false, feedback = Feedback(true, R.string.player_link_ok)) }
+                    load()
+                }
+                is ApiResult.HttpError -> _state.update {
+                    it.copy(busy = false, feedback = Feedback(false, linkErrorRes(result.status)))
+                }
+                is ApiResult.NetworkError -> _state.update {
+                    it.copy(busy = false, feedback = Feedback(false, R.string.error_network))
+                }
+            }
+        }
+    }
+
+    fun createAccount(account: String, password: String) {
+        if (_state.value.busy || account.isBlank() || password.length < 8) return
+        _state.update { it.copy(busy = true, feedback = null) }
+        viewModelScope.launch {
+            when (val result = repository.createAccount(account.trim(), password)) {
+                is ApiResult.Ok -> {
+                    _state.update { it.copy(busy = false, feedback = Feedback(true, R.string.player_create_ok)) }
+                    load()
+                }
+                is ApiResult.HttpError -> _state.update {
+                    it.copy(busy = false, feedback = Feedback(false, createErrorRes(result.status)))
+                }
+                is ApiResult.NetworkError -> _state.update {
+                    it.copy(busy = false, feedback = Feedback(false, R.string.error_network))
+                }
+            }
+        }
+    }
+
+    private fun linkErrorRes(status: Int): Int = when (status) {
+        400 -> R.string.player_link_bad_code
+        503 -> R.string.error_shard_offline
+        else -> R.string.player_link_error
+    }
+
+    private fun createErrorRes(status: Int): Int = when (status) {
+        409 -> R.string.player_create_taken
+        429 -> R.string.player_create_capped
+        403 -> R.string.player_create_unavailable
+        400 -> R.string.player_create_rejected
+        503 -> R.string.error_shard_offline
+        else -> R.string.player_create_error
+    }
+}

app/src/main/java/com/runicgateway/app/ui/player/MyHousesScreen.kt

@@ -0,0 +1,106 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.Card
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.PlayerHouseDto
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.EmptyView
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+
+/**
+ * The player's own houses with home/decay status (PLAN.md §6.3), text-only. An
+ * IDOC house is flagged prominently. Only the caller's own property is ever shown.
+ */
+@Composable
+fun MyHousesScreen(
+    modifier: Modifier = Modifier,
+    viewModel: MyHousesViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+    when (val s = state) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(s.kind, onRetry = viewModel::load, modifier = modifier)
+        is UiState.Success -> {
+            if (s.data.isEmpty()) {
+                EmptyView(stringResource(R.string.player_houses_empty), modifier)
+            } else {
+                LazyColumn(
+                    modifier = modifier.fillMaxSize().padding(horizontal = 16.dp),
+                    verticalArrangement = Arrangement.spacedBy(8.dp),
+                    contentPadding = androidx.compose.foundation.layout.PaddingValues(vertical = 16.dp),
+                ) {
+                    items(s.data, key = { it.serial }) { house -> HouseCard(house) }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun HouseCard(house: PlayerHouseDto) {
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp)) {
+            Row(Modifier.fillMaxWidth()) {
+                Text(
+                    text = house.name?.takeIf { it.isNotBlank() }
+                        ?: house.region
+                        ?: stringResource(R.string.player_house_fallback),
+                    style = MaterialTheme.typography.titleMedium,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.weight(1f),
+                )
+                if (house.isIdoc) {
+                    Text(
+                        stringResource(R.string.houses_idoc_badge),
+                        style = MaterialTheme.typography.labelMedium,
+                        color = MaterialTheme.colorScheme.error,
+                    )
+                }
+            }
+            house.stage?.takeIf { it.isNotBlank() }?.let {
+                Text(
+                    stringResource(R.string.player_house_stage, it),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = if (house.isIdoc) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 6.dp),
+                )
+            }
+            val where = listOfNotNull(
+                house.region,
+                house.map,
+                house.x?.let { "(${house.x}, ${house.y})" },
+            ).joinToString("  ·  ")
+            if (where.isNotBlank()) {
+                Text(
+                    where,
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 4.dp),
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/player/MyHousesViewModel.kt

@@ -0,0 +1,41 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.data.api.dto.PlayerHouseDto
+import com.runicgateway.app.data.repository.PlayerShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The player's OWN houses with decay/IDOC status (PLAN.md §6.3), read from
+ * `/player/shard/houses` — never anyone else's. A `503` renders as offline/retry (§7).
+ */
+@HiltViewModel
+class MyHousesViewModel @Inject constructor(
+    private val repository: PlayerShardRepository,
+) : ViewModel() {
+
+    private val _state = MutableStateFlow<UiState<List<PlayerHouseDto>>>(UiState.Loading)
+    val state: StateFlow<UiState<List<PlayerHouseDto>>> = _state.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun load() {
+        _state.value = UiState.Loading
+        viewModelScope.launch {
+            _state.value = repository.houses().toUiState()
+        }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/player/VendorsScreen.kt

@@ -0,0 +1,229 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Card
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.runicgateway.app.R
+import com.runicgateway.app.data.api.dto.VendorDto
+import com.runicgateway.app.data.api.dto.VendorListingDto
+import com.runicgateway.app.data.api.dto.VendorSaleDto
+import com.runicgateway.app.ui.ErrorKind
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.LoadingView
+import java.text.DateFormat
+import java.util.Date
+
+/**
+ * The player's own player-vendors + recent sales (PLAN.md §6.3), text-only. Vendor
+ * shops group under their game account; recent sales list across all linked
+ * accounts. A down shard degrades to a per-account retry (§7).
+ */
+@Composable
+fun VendorsScreen(
+    modifier: Modifier = Modifier,
+    viewModel: VendorsViewModel = hiltViewModel(),
+) {
+    val state by viewModel.state.collectAsStateWithLifecycle()
+
+    when (val accounts = state.accounts) {
+        is UiState.Loading -> LoadingView(modifier)
+        is UiState.Error -> ErrorView(accounts.kind, onRetry = viewModel::load, modifier = modifier)
+        is UiState.Success -> Column(
+            modifier = modifier
+                .fillMaxSize()
+                .verticalScroll(rememberScrollState())
+                .padding(16.dp),
+            verticalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            SalesCard(state.sales)
+
+            if (accounts.data.isEmpty()) {
+                Text(
+                    stringResource(R.string.player_vendors_no_accounts),
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            } else {
+                accounts.data.forEach { account ->
+                    AccountVendors(
+                        account = account,
+                        vendors = state.vendors[account] ?: UiState.Loading,
+                        onRetry = { viewModel.loadVendors(account) },
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun SalesCard(sales: UiState<List<VendorSaleDto>>) {
+    Card(Modifier.fillMaxWidth()) {
+        Column(Modifier.padding(16.dp)) {
+            Text(stringResource(R.string.player_sales_title), style = MaterialTheme.typography.titleMedium)
+            when (sales) {
+                is UiState.Loading -> Text(
+                    stringResource(R.string.player_roster_loading),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 8.dp),
+                )
+                is UiState.Error -> Text(
+                    stringResource(R.string.error_server),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 8.dp),
+                )
+                is UiState.Success -> {
+                    if (sales.data.isEmpty()) {
+                        Text(
+                            stringResource(R.string.player_sales_empty),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.padding(top = 8.dp),
+                        )
+                    } else {
+                        sales.data.forEach { SaleRow(it) }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun SaleRow(sale: VendorSaleDto) {
+    Row(Modifier.fillMaxWidth().padding(top = 10.dp), horizontalArrangement = Arrangement.SpaceBetween) {
+        Column(Modifier.padding(end = 12.dp)) {
+            Text(
+                sale.itemType ?: stringResource(R.string.player_char_item),
+                style = MaterialTheme.typography.bodyMedium,
+            )
+            sale.t?.let {
+                Text(
+                    DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT).format(Date(it)),
+                    style = MaterialTheme.typography.labelSmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+            }
+        }
+        Text(
+            stringResource(R.string.player_gold_amount, "%,d".format(sale.price ?: 0L)),
+            style = MaterialTheme.typography.bodyMedium,
+        )
+    }
+}
+
+@Composable
+private fun AccountVendors(
+    account: String,
+    vendors: UiState<List<VendorDto>>,
+    onRetry: () -> Unit,
+) {
+    Column {
+        Text(
+            account,
+            style = MaterialTheme.typography.titleSmall,
+            color = MaterialTheme.colorScheme.primary,
+            modifier = Modifier.padding(vertical = 8.dp),
+        )
+        when (vendors) {
+            is UiState.Loading -> Text(
+                stringResource(R.string.player_roster_loading),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+            is UiState.Error -> VendorError(vendors.kind, onRetry)
+            is UiState.Success -> {
+                if (vendors.data.isEmpty()) {
+                    Text(
+                        stringResource(R.string.player_vendors_empty),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                } else {
+                    vendors.data.forEach { VendorCard(it) }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun VendorError(kind: ErrorKind, onRetry: () -> Unit) {
+    Row {
+        Text(
+            stringResource(if (kind == ErrorKind.SHARD_OFFLINE) R.string.error_shard_offline else R.string.error_server),
+            style = MaterialTheme.typography.bodySmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.weight(1f),
+        )
+        TextButton(onClick = onRetry) { Text(stringResource(R.string.action_retry)) }
+    }
+}
+
+@Composable
+private fun VendorCard(vendor: VendorDto) {
+    Card(Modifier.fillMaxWidth().padding(vertical = 4.dp)) {
+        Column(Modifier.padding(16.dp)) {
+            Text(
+                vendor.shopName ?: stringResource(R.string.player_vendor_fallback),
+                style = MaterialTheme.typography.titleMedium,
+            )
+            val meta = listOfNotNull(
+                vendor.holdGold?.let { stringResource(R.string.player_vendor_hold, "%,d".format(it)) },
+                vendor.map,
+            ).joinToString("  ·  ")
+            if (meta.isNotBlank()) {
+                Text(meta, style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(top = 2.dp))
+            }
+            if (vendor.listings.isNotEmpty()) {
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+                vendor.listings.forEach { ListingRow(it) }
+            } else {
+                Text(
+                    stringResource(R.string.player_vendor_no_listings),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 8.dp),
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun ListingRow(listing: VendorListingDto) {
+    Row(Modifier.fillMaxWidth().padding(vertical = 3.dp), horizontalArrangement = Arrangement.SpaceBetween) {
+        Text(
+            stringResource(R.string.player_listing_item, listing.itemId ?: 0, listing.amount ?: 1),
+            style = MaterialTheme.typography.bodySmall,
+            modifier = Modifier.weight(1f),
+        )
+        Text(
+            stringResource(R.string.player_gold_amount, "%,d".format(listing.price ?: 0L)),
+            style = MaterialTheme.typography.bodySmall,
+        )
+    }
+}

app/src/main/java/com/runicgateway/app/ui/player/VendorsViewModel.kt

@@ -0,0 +1,72 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.result.ApiResult
+import com.runicgateway.app.core.result.map
+import com.runicgateway.app.data.api.dto.VendorDto
+import com.runicgateway.app.data.api.dto.VendorSaleDto
+import com.runicgateway.app.data.repository.PlayerShardRepository
+import com.runicgateway.app.ui.UiState
+import com.runicgateway.app.ui.toUiState
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * The player's own player-vendors and recent vendor sales (PLAN.md §6.3): a
+ * per-account vendor snapshot (shops + listings) over `/player/shard/vendors/:account`
+ * plus the recent-sales log over `/player/shard/sales`. Each account's snapshot
+ * carries its own load state so a down shard degrades one account to a retry (§7).
+ * Text-only listings — item names are clilocs the app has no table for.
+ */
+@HiltViewModel
+class VendorsViewModel @Inject constructor(
+    private val repository: PlayerShardRepository,
+) : ViewModel() {
+
+    data class State(
+        val accounts: UiState<List<String>> = UiState.Loading,
+        val vendors: Map<String, UiState<List<VendorDto>>> = emptyMap(),
+        val sales: UiState<List<VendorSaleDto>> = UiState.Loading,
+    )
+
+    private val _state = MutableStateFlow(State())
+    val state: StateFlow<State> = _state.asStateFlow()
+
+    init {
+        load()
+    }
+
+    fun load() {
+        _state.update { it.copy(accounts = UiState.Loading, vendors = emptyMap(), sales = UiState.Loading) }
+        viewModelScope.launch {
+            when (val result = repository.accounts()) {
+                is ApiResult.Ok -> {
+                    val names = result.data.map { it.account }
+                    _state.update { it.copy(accounts = UiState.Success(names)) }
+                    names.forEach { loadVendors(it) }
+                }
+                else -> _state.update { it.copy(accounts = result.map { emptyList<String>() }.toUiState()) }
+            }
+        }
+        viewModelScope.launch {
+            _state.update { it.copy(sales = repository.sales().toUiState()) }
+        }
+    }
+
+    fun loadVendors(account: String) {
+        _state.update { it.copy(vendors = it.vendors + (account to UiState.Loading)) }
+        viewModelScope.launch {
+            val vendors = repository.vendors(account).map { it.vendors }.toUiState()
+            _state.update { it.copy(vendors = it.vendors + (account to vendors)) }
+        }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/session/SessionViewModel.kt

@@ -0,0 +1,39 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.session
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.runicgateway.app.core.auth.Session
+import com.runicgateway.app.core.auth.SessionManager
+import com.runicgateway.app.data.repository.AuthRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+/**
+ * Activity-scoped view of the current session for the app shell (PLAN.md §4.3,
+ * §5): the shared menu observes [session] to reveal signed-in groups + the
+ * sign-in/out toggle, and the shell drives resume re-validation and sign-out.
+ * Login itself lives in [com.runicgateway.app.ui.auth.LoginViewModel].
+ */
+@HiltViewModel
+class SessionViewModel @Inject constructor(
+    sessionManager: SessionManager,
+    private val authRepository: AuthRepository,
+) : ViewModel() {
+
+    val session: StateFlow<Session> = sessionManager.state
+
+    /** Re-validate the cached role against the backend on app resume. */
+    fun revalidate() {
+        viewModelScope.launch { authRepository.revalidate() }
+    }
+
+    /** Sign out of this session, or every session with [allDevices]. */
+    fun signOut(allDevices: Boolean = false) {
+        viewModelScope.launch { authRepository.logout(allDevices) }
+    }
+}

app/src/main/java/com/runicgateway/app/ui/shard/ChampsScreen.kt

@@ -20,6 +20,8 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.runicgateway.app.R
 import com.runicgateway.app.data.api.dto.ChampDto
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.StatusPill
 
 /** The champion-spawn board (PLAN.md §6.2), live via SSE deltas. */
 @Composable
@@ -53,11 +55,7 @@ private fun ChampCard(champ: ChampDto) {
                     modifier = Modifier.weight(1f),
                 )
                 champ.status?.let {
-                    Text(
-                        text = it.replaceFirstChar { c -> c.uppercase() },
-                        style = MaterialTheme.typography.labelMedium,
-                        color = MaterialTheme.colorScheme.primary,
-                    )
+                    StatusPill(text = it, tone = champStatusTone(it))
                 }
             }
             val detail = champDetail(champ)
@@ -82,6 +80,13 @@ private fun ChampCard(champ: ChampDto) {
     }
 }
 
+/** Map a champ status to a pill tone: live spawns read green, cooldowns amber. */
+private fun champStatusTone(status: String): PillTone = when (status.lowercase()) {
+    "active", "up", "spawned" -> PillTone.Success
+    "cooldown", "restarting", "advancing" -> PillTone.Warning
+    else -> PillTone.Neutral
+}
+
 /** A short category-specific status line, mirroring the website's champ detail. */
 @Composable
 private fun champDetail(champ: ChampDto): String = when (champ.category) {

app/src/main/java/com/runicgateway/app/ui/shard/HousesScreen.kt

@@ -20,6 +20,8 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.runicgateway.app.R
 import com.runicgateway.app.data.api.dto.HouseDto
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.StatusPill
 
 /** The public "falling houses" (IDOC) board (PLAN.md §6.2), live via `house.decay`. */
 @Composable
@@ -54,10 +56,9 @@ private fun HouseCard(house: HouseDto) {
                     overflow = TextOverflow.Ellipsis,
                     modifier = Modifier.weight(1f),
                 )
-                Text(
+                StatusPill(
                     text = stringResource(R.string.houses_idoc_badge),
-                    style = MaterialTheme.typography.labelMedium,
-                    color = MaterialTheme.colorScheme.error,
+                    tone = PillTone.Danger,
                 )
             }
             val where = listOfNotNull(

app/src/main/java/com/runicgateway/app/ui/shard/ShardComponents.kt

@@ -27,6 +27,8 @@ import com.runicgateway.app.ui.UiState
 import com.runicgateway.app.ui.components.EmptyView
 import com.runicgateway.app.ui.components.ErrorView
 import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.theme.ShardSuccess
+import com.runicgateway.app.ui.theme.ShardSuccessDot
 
 /**
  * A small "Live / Offline" indicator for the shard screens (PLAN.md §6.2): a dot +
@@ -34,22 +36,19 @@ import com.runicgateway.app.ui.components.LoadingView
  */
 @Composable
 fun LiveChip(connected: Boolean, modifier: Modifier = Modifier) {
-    val color = if (connected) {
-        MaterialTheme.colorScheme.primary
-    } else {
-        MaterialTheme.colorScheme.onSurfaceVariant
-    }
+    val dotColor = if (connected) ShardSuccessDot else MaterialTheme.colorScheme.onSurfaceVariant
+    val textColor = if (connected) ShardSuccess else MaterialTheme.colorScheme.onSurfaceVariant
     Row(modifier = modifier, verticalAlignment = Alignment.CenterVertically) {
         androidx.compose.foundation.layout.Box(
             Modifier
                 .size(8.dp)
                 .clip(CircleShape)
-                .background(color),
+                .background(dotColor),
         )
         Text(
             text = stringResource(if (connected) R.string.shard_live else R.string.shard_offline),
             style = MaterialTheme.typography.labelMedium,
-            color = color,
+            color = textColor,
             modifier = Modifier.padding(start = 6.dp),
         )
     }

app/src/main/java/com/runicgateway/app/ui/shard/ShardScreen.kt

@@ -30,7 +30,11 @@ import com.runicgateway.app.data.api.dto.OnlineStaffDto
 import com.runicgateway.app.data.api.dto.ShardStatusDto
 import com.runicgateway.app.ui.UiState
 import com.runicgateway.app.ui.components.ErrorView
+import com.runicgateway.app.ui.components.FeatureCard
 import com.runicgateway.app.ui.components.LoadingView
+import com.runicgateway.app.ui.components.PillTone
+import com.runicgateway.app.ui.components.SectionLabel
+import com.runicgateway.app.ui.components.StatusPill
 
 /** Board destinations reachable from the hub. */
 enum class ShardBoard { CHAMPS, GUILDS, GOVERNORS, HOUSES }
@@ -114,29 +118,42 @@ private fun HubContent(
 
 @Composable
 private fun StatusCard(status: ShardStatusDto, presenceCount: Int?) {
-    Card(Modifier.fillMaxWidth()) {
-        Column(Modifier.padding(16.dp)) {
-            Text(
-                text = stringResource(
-                    if (status.isOnline) R.string.shard_status_online else R.string.shard_status_offline,
-                ),
-                style = MaterialTheme.typography.titleMedium,
-                color = if (status.isOnline) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-            val online = presenceCount ?: status.onlineCount
-            Text(
-                text = stringResource(R.string.shard_online_count, online),
-                style = MaterialTheme.typography.bodyMedium,
-                modifier = Modifier.padding(top = 6.dp),
-            )
-            status.economy?.gold?.let { gold ->
+    FeatureCard {
+        Row(
+            Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceBetween,
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Column(Modifier.weight(1f)) {
                 Text(
-                    text = stringResource(R.string.shard_economy_gold, "%,.0f".format(gold)),
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    modifier = Modifier.padding(top = 2.dp),
+                    text = stringResource(
+                        if (status.isOnline) R.string.shard_status_online else R.string.shard_status_offline,
+                    ),
+                    style = MaterialTheme.typography.titleMedium,
+                    color = MaterialTheme.colorScheme.onSurface,
                 )
+                val online = presenceCount ?: status.onlineCount
+                Text(
+                    text = stringResource(R.string.shard_online_count, online),
+                    style = MaterialTheme.typography.labelMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(top = 6.dp),
+                )
+                status.economy?.gold?.let { gold ->
+                    Text(
+                        text = stringResource(R.string.shard_economy_gold, "%,.0f".format(gold)),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(top = 2.dp),
+                    )
+                }
             }
+            StatusPill(
+                text = stringResource(
+                    if (status.isOnline) R.string.shard_live else R.string.shard_offline,
+                ),
+                tone = if (status.isOnline) PillTone.Success else PillTone.Neutral,
+            )
         }
     }
 }
@@ -168,11 +185,7 @@ private fun BoardsCard(onOpenBoard: (ShardBoard) -> Unit) {
 
 @Composable
 private fun SectionHeader(text: String) {
-    Text(
-        text = text,
-        style = MaterialTheme.typography.titleSmall,
-        modifier = Modifier.padding(top = 4.dp),
-    )
+    SectionLabel(text = text, modifier = Modifier.padding(top = 4.dp))
 }
 
 @Composable

app/src/main/java/com/runicgateway/app/ui/theme/Color.kt

@@ -5,12 +5,44 @@ package com.runicgateway.app.ui.theme
 
 import androidx.compose.ui.graphics.Color
 
-// Placeholder palette for the M0 skeleton. The M5 design pass replaces this and
-// derives Material 3 colors from each shard's per-install branding (PLAN.md §3, §5).
-val Purple80 = Color(0xFFD0BCFF)
-val PurpleGrey80 = Color(0xFFCCC2DC)
-val Pink80 = Color(0xFFEFB8C8)
+// ─────────────────────────────────────────────────────────────────────────────
+// Shard-website palette (M5 design pass, docs/android/PLAN.md §M5). Deep blue-black
+// surfaces, a slate-blue accent, parchment serif text, and a light CTA fill —
+// mirrored from the "Runic Gateway Screens" design. Dark-only by design.
+// ─────────────────────────────────────────────────────────────────────────────
 
-val Purple40 = Color(0xFF6650A4)
-val PurpleGrey40 = Color(0xFF625B71)
-val Pink40 = Color(0xFF7D5260)
+// Surfaces
+val ShardPage = Color(0xFF0B0F14)       // app/page background
+val ShardSurface = Color(0xFF0E1318)     // screen background
+val ShardElevated = Color(0xFF11161D)    // top bar, inputs, drawer, list tracks
+val ShardCardTop = Color(0xFF192231)     // feature-card gradient (top)
+val ShardCardBottom = Color(0xFF141A21)  // feature-card gradient (bottom)
+
+// Lines
+val ShardOutline = Color(0xFF2A3544)     // borders / input outlines
+val ShardDivider = Color(0xFF1D2733)     // hairline row dividers
+
+// Text
+val ShardHeading = Color(0xFFEEF3F8)     // brightest headings
+val ShardHeadingDim = Color(0xFFE6EDF6)  // heading on surface
+val ShardBody = Color(0xFFC4CDD8)        // body copy
+val ShardMuted = Color(0xFFAEB8C4)       // secondary text
+val ShardFaint = Color(0xFF6F7D8E)       // meta / faint labels
+
+// Accent + CTA
+val ShardAccent = Color(0xFF7F99BD)      // links, secondary highlights
+val ShardCta = Color(0xFFCDD9E8)         // filled button surface
+val ShardOnCta = Color(0xFF0B0F14)       // text on the filled button
+
+// Neutral / info pill
+val ShardPillBg = Color(0xFF13243C)
+val ShardPillFg = Color(0xFFCDD9E8)
+
+// Semantic (status pills + dots)
+val ShardSuccess = Color(0xFF7FD0A4)
+val ShardSuccessBg = Color(0x295FB98A)   // rgba(95,185,138,0.16)
+val ShardSuccessDot = Color(0xFF5FB98A)
+val ShardWarning = Color(0xFFE6C26A)
+val ShardWarningBg = Color(0x2EE6C26A)   // rgba(230,194,106,0.18)
+val ShardDanger = Color(0xFFD98B84)
+val ShardDangerBg = Color(0x29D98B84)    // rgba(217,139,132,0.16)

app/src/main/java/com/runicgateway/app/ui/theme/Font.kt

@@ -0,0 +1,40 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.theme
+
+import androidx.compose.ui.text.ExperimentalTextApi
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontVariation
+import androidx.compose.ui.text.font.FontWeight
+import com.runicgateway.app.R
+
+/**
+ * Type families for the M5 shard-website design pass (docs/android/PLAN.md §M5).
+ *
+ * - [Cinzel] — the engraved serif display face used for headings, screen titles,
+ *   and the top-bar title. Shipped as a single weight-axis **variable** font
+ *   (`res/font/cinzel_variable.ttf`, SIL OFL — see `app/licenses/Cinzel-OFL.txt`);
+ *   the 500/600/700 instances the design uses are pinned via [FontVariation]
+ *   (supported on API 26+, and our minSdk is 29).
+ * - [AppSerif] — the parchment body face. Android's platform serif is Noto Serif,
+ *   which reads as the design's Georgia body copy without bundling another binary.
+ * - [AppSans] — the label/meta/button face (the design's "Helvetica Neue" runs).
+ */
+@OptIn(ExperimentalTextApi::class)
+private fun cinzel(weight: FontWeight) =
+    Font(
+        R.font.cinzel_variable,
+        weight = weight,
+        variationSettings = FontVariation.Settings(FontVariation.weight(weight.weight)),
+    )
+
+val Cinzel = FontFamily(
+    cinzel(FontWeight.Medium),   // 500
+    cinzel(FontWeight.SemiBold), // 600
+    cinzel(FontWeight.Bold),     // 700
+)
+
+val AppSerif = FontFamily.Serif
+val AppSans = FontFamily.SansSerif

app/src/main/java/com/runicgateway/app/ui/theme/Theme.kt

@@ -3,54 +3,78 @@
  */
 package com.runicgateway.app.ui.theme
 
-import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Shapes
 import androidx.compose.material3.darkColorScheme
-import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
 
-private val DarkColorScheme = darkColorScheme(
-    primary = Purple80,
-    secondary = PurpleGrey80,
-    tertiary = Pink80,
+/**
+ * The shard-website color scheme (M5 design pass). The app is **dark-only** — the
+ * design is a single deep blue-black theme, so there is no light variant and the
+ * system light/dark setting is intentionally ignored. Material roles are mapped
+ * onto the palette in [ui/theme/Color.kt] so the ~20 token-based screens take on
+ * the theme without per-screen color work.
+ */
+private val ShardColorScheme = darkColorScheme(
+    primary = ShardCta,               // filled CTA buttons
+    onPrimary = ShardOnCta,
+    secondary = ShardAccent,          // links / secondary highlights
+    onSecondary = ShardOnCta,
+    tertiary = ShardAccent,
+    onTertiary = ShardOnCta,
+    background = ShardPage,
+    onBackground = ShardBody,
+    surface = ShardSurface,
+    onSurface = ShardBody,
+    surfaceVariant = ShardElevated,
+    onSurfaceVariant = ShardMuted,
+    surfaceContainer = ShardElevated,
+    surfaceContainerHigh = ShardElevated,
+    surfaceContainerLow = ShardSurface,
+    outline = ShardOutline,
+    outlineVariant = ShardDivider,
+    secondaryContainer = ShardPillBg, // neutral chips / selected drawer item
+    onSecondaryContainer = ShardPillFg,
+    error = ShardDanger,
+    onError = ShardOnCta,
+    errorContainer = ShardDangerBg,
+    onErrorContainer = ShardDanger,
 )
 
-private val LightColorScheme = lightColorScheme(
-    primary = Purple40,
-    secondary = PurpleGrey40,
-    tertiary = Pink40,
+/** 8dp inputs/chips, 12dp cards, 16dp large surfaces — matching the mockup radii. */
+private val ShardShapes = Shapes(
+    extraSmall = RoundedCornerShape(8.dp),
+    small = RoundedCornerShape(8.dp),
+    medium = RoundedCornerShape(12.dp),
+    large = RoundedCornerShape(16.dp),
+    extraLarge = RoundedCornerShape(24.dp),
 )
 
 /**
- * App theme for the functional pass. The color scheme is seeded from the
- * per-shard brand accent (PLAN.md §3: the app themes itself from the site's
- * branding) when one is available, so the app takes on each shard's color; it
- * falls back to a neutral placeholder scheme before connect or when a site
- * publishes no accent.
- *
- * This is deliberately a minimal seeding — a single-color override on the
- * default Material 3 schemes. The M5 design pass replaces it with a full,
- * designed color system (§2.1, §5); nothing here is meant to be the final look.
+ * App theme. The color scheme is the fixed shard-website dark palette; when a shard
+ * publishes a brand accent (PLAN.md §3), it seeds the [MaterialTheme]'s primary and
+ * secondary roles so buttons and highlights carry that shard's color while the rest
+ * of the deep blue-black system stays intact. With no accent, the slate default is
+ * used.
  */
 @Composable
 fun RunicGatewayTheme(
     accent: Color? = null,
-    darkTheme: Boolean = isSystemInDarkTheme(),
     content: @Composable () -> Unit,
 ) {
-    val base = if (darkTheme) DarkColorScheme else LightColorScheme
     val colorScheme = if (accent != null) {
-        // Brand consistency across a shard wins over device dynamic color: seed
-        // the primary role from the accent so buttons/highlights carry the brand.
-        base.copy(primary = accent, secondary = accent)
+        ShardColorScheme.copy(primary = accent, secondary = accent, tertiary = accent)
     } else {
-        base
+        ShardColorScheme
     }
 
     MaterialTheme(
         colorScheme = colorScheme,
         typography = Typography,
+        shapes = ShardShapes,
         content = content,
     )
 }

app/src/main/java/com/runicgateway/app/ui/theme/Type.kt

@@ -5,17 +5,77 @@ package com.runicgateway.app.ui.theme
 
 import androidx.compose.material3.Typography
 import androidx.compose.ui.text.TextStyle
-import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.sp
 
-// Default Material 3 type scale for the skeleton; refined in the M5 design pass.
+/**
+ * The M5 type scale. Three families carry the design (see [ui/theme/Font.kt]):
+ * [Cinzel] for the engraved display/headline/title roles, [AppSerif] (Noto Serif)
+ * for parchment body copy, and [AppSans] for the letter-spaced label/meta/button
+ * roles. Sizes and tracking mirror the "Runic Gateway Screens" mockup.
+ */
 val Typography = Typography(
+    // Display / headline / title — Cinzel engraved serif
+    displayLarge = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 40.sp, lineHeight = 46.sp, letterSpacing = 0.4.sp,
+    ),
+    displayMedium = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 32.sp, lineHeight = 40.sp, letterSpacing = 0.3.sp,
+    ),
+    displaySmall = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 28.sp, lineHeight = 36.sp, letterSpacing = 0.2.sp,
+    ),
+    headlineLarge = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 26.sp, lineHeight = 34.sp, letterSpacing = 0.2.sp,
+    ),
+    headlineMedium = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 24.sp, lineHeight = 32.sp, letterSpacing = 0.2.sp,
+    ),
+    headlineSmall = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 22.sp, lineHeight = 28.sp, letterSpacing = 0.2.sp,
+    ),
+    titleLarge = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 20.sp, lineHeight = 26.sp, letterSpacing = 0.2.sp,
+    ),
+    titleMedium = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 17.sp, lineHeight = 24.sp, letterSpacing = 0.15.sp,
+    ),
+    titleSmall = TextStyle(
+        fontFamily = Cinzel, fontWeight = FontWeight.SemiBold,
+        fontSize = 15.sp, lineHeight = 22.sp, letterSpacing = 0.1.sp,
+    ),
+    // Body — parchment serif
     bodyLarge = TextStyle(
-        fontFamily = FontFamily.Default,
-        fontWeight = FontWeight.Normal,
-        fontSize = 16.sp,
-        lineHeight = 24.sp,
-        letterSpacing = 0.5.sp,
+        fontFamily = AppSerif, fontWeight = FontWeight.Normal,
+        fontSize = 16.sp, lineHeight = 26.sp, letterSpacing = 0.15.sp,
+    ),
+    bodyMedium = TextStyle(
+        fontFamily = AppSerif, fontWeight = FontWeight.Normal,
+        fontSize = 15.sp, lineHeight = 24.sp, letterSpacing = 0.15.sp,
+    ),
+    bodySmall = TextStyle(
+        fontFamily = AppSerif, fontWeight = FontWeight.Normal,
+        fontSize = 13.sp, lineHeight = 20.sp, letterSpacing = 0.2.sp,
+    ),
+    // Labels / meta / buttons — sans, letter-spaced
+    labelLarge = TextStyle(
+        fontFamily = AppSans, fontWeight = FontWeight.Bold,
+        fontSize = 14.sp, lineHeight = 18.sp, letterSpacing = 0.45.sp,
+    ),
+    labelMedium = TextStyle(
+        fontFamily = AppSans, fontWeight = FontWeight.Medium,
+        fontSize = 12.sp, lineHeight = 16.sp, letterSpacing = 0.4.sp,
+    ),
+    labelSmall = TextStyle(
+        fontFamily = AppSans, fontWeight = FontWeight.Medium,
+        fontSize = 11.sp, lineHeight = 15.sp, letterSpacing = 0.5.sp,
     ),
 )

app/src/main/res/drawable-anydpi/ic_stat_name.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="172"
+    android:viewportHeight="218.95209"
+    android:tint="#FFFFFF">
+  <group android:scaleX="0.7227152"
+      android:scaleY="0.92"
+      android:translateX="23.846495"
+      android:translateY="8.758083">
+    <group android:translateY="154.51205">
+      <path android:pathData="M9.28125,-0L9.28125,-103.109375L42.265625,-103.109375Q53.140625,-103.109375,60.984375,-99.25Q68.828125,-95.40625,73.109375,-88.203125Q77.40625,-81,77.40625,-71.203125L77.40625,-70.0625Q77.40625,-60.1875,73.109375,-53.015625Q68.828125,-45.859375,60.9375,-41.96875Q53.0625,-38.09375,42.265625,-38.09375L20.296875,-38.09375L20.296875,-54.5L41.828125,-54.5Q49.46875,-54.5,53.75,-58.390625Q58.03125,-62.28125,58.03125,-69.125L58.03125,-70.984375Q58.03125,-77.828125,53.75,-81.71875Q49.46875,-85.609375,41.828125,-85.609375L28.4375,-85.609375L28.4375,-0L9.28125,-0ZM61.78125,-0L35.5625,-45.359375L56.65625,-45.359375L83.453125,-0L61.78125,-0Z"
+          android:fillColor="#000000"/>
+      <path android:pathData="M132.65625,2.375Q119.765625,2.375,110.40625,-3.921875Q101.046875,-10.21875,96.046875,-21.953125Q91.046875,-33.703125,91.046875,-49.96875L91.046875,-52.625Q91.046875,-69.046875,96.046875,-80.890625Q101.046875,-92.734375,110.296875,-99.109375Q119.546875,-105.484375,132.375,-105.484375Q145.25,-105.484375,153.96875,-99.109375Q162.6875,-92.734375,166.5625,-80.5L149.21875,-74.09375Q147.125,-81,143.04688,-84.234375Q138.98438,-87.484375,132.57812,-87.484375Q121.859375,-87.484375,116.125,-78.546875Q110.40625,-69.625,110.40625,-52.984375L110.40625,-49.609375Q110.40625,-32.96875,116.15625,-24.21875Q121.921875,-15.484375,132.79688,-15.484375Q141.57812,-15.484375,146.35938,-21.453125Q151.15625,-27.4375,151.15625,-38.453125L151.15625,-41.828125L129.84375,-41.828125L129.84375,-57.890625L169.09375,-57.890625L169.09375,-41.90625Q169.09375,-20.734375,159.57812,-9.171875Q150.07812,2.375,132.65625,2.375Z"
+          android:fillColor="#000000"/>
+    </group>
+  </group>
+</vector>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
+<!--
+  Adaptive-icon background layer (M6): a solid deep-indigo fill behind the
+  transparent gateway-medallion foreground. Replaces the Image Asset wizard's
+  default green grid. Sourced from @color/ic_launcher_background so the launcher
+  background stays a single source of truth.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="@color/ic_launcher_background"
+        android:pathData="M0,0h108v108h-108z" />
+</vector>

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
-<!-- Placeholder launcher glyph: a stylized gateway arch. Replaced in the M5 design pass. -->
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path
-        android:fillColor="#D0BCFF"
-        android:pathData="M38,74 L38,50 A16,16 0 0,1 70,50 L70,74 L62,74 L62,50 A8,8 0 0,0 46,50 L46,74 Z" />
-    <path
-        android:fillColor="#EFB8C8"
-        android:pathData="M52,34 L56,34 L56,40 L52,40 Z M50,40 L58,40 L58,44 L50,44 Z" />
-</vector>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,7 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- SPDX-License-Identifier: GPL-3.0-or-later -->
+<!--
+  Adaptive launcher icon (API 26+, which is every target device at minSdk 29):
+  the gateway-medallion foreground (transparent PNG, all densities) over the
+  deep-indigo background. No <monochrome> layer: the medallion is a full-colour
+  mark that does not reduce to a clean single-tone silhouette, so themed-icon
+  mode falls back to this standard icon rather than a tinted blob.
+-->
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- SPDX-License-Identifier: GPL-3.0-or-later -->
+<!-- Round adaptive launcher icon — same layers as ic_launcher.xml. -->
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
 </adaptive-icon>

app/src/main/res/values/colors.xml

@@ -2,4 +2,7 @@
 <!-- SPDX-License-Identifier: GPL-3.0-or-later -->
 <resources>
     <color name="ic_launcher_background">#1B1033</color>
+    <!-- M5 design pass: the shard-website page color, used as the launch window
+         background so the first frame matches the dark Compose theme (no white flash). -->
+    <color name="launch_background">#0B0F14</color>
 </resources>

app/src/main/res/values/strings.xml

@@ -30,6 +30,7 @@
     <string name="connect_error_scheme">Only http and https addresses are supported.</string>
     <string name="connect_error_insecure">A secure https address is required.</string>
     <string name="connect_error_not_runic">That site isn\'t a Runic Gateway shard.</string>
+    <string name="connect_error_version">This app is out of date for that site (it speaks API %1$s). Update the app and try again.</string>
     <string name="connect_error_unreachable">Couldn\'t reach that site. Check the address and your connection.</string>
     <string name="connect_error_server">The site responded with an error (%1$d). Try again shortly.</string>
 
@@ -41,8 +42,148 @@
     <string name="menu_shard">Shard</string>
     <string name="menu_about">About</string>
     <string name="menu_contact">Contact</string>
+    <string name="menu_account">My account</string>
+    <string name="menu_my_characters">My characters</string>
+    <string name="menu_my_vendors">My vendors</string>
+    <string name="menu_my_houses">My houses</string>
+    <string name="menu_sign_in">Sign in</string>
+    <string name="menu_sign_out">Sign out</string>
     <string name="menu_change_server">Change server</string>
 
+    <!-- ── Auth: login (§4.1) ──────────────────────────────────────────── -->
+    <string name="login_title">Sign in</string>
+    <string name="login_subtitle">Sign in with your shard account.</string>
+    <string name="login_username">Username</string>
+    <string name="login_password">Password</string>
+    <string name="login_totp_code">Authentication code</string>
+    <string name="login_totp_hint">Enter the 6-digit code from your authenticator app.</string>
+    <string name="login_button">Sign in</string>
+    <string name="login_register">Create an account</string>
+    <string name="login_forgot">Forgot your password?</string>
+    <string name="login_sso">Sign in with Google or Discord (on the website)</string>
+    <string name="login_error_credentials">Incorrect username or password.</string>
+    <string name="login_error_code">That code didn\'t match. Try the current code.</string>
+    <string name="login_error_rate_limited">Too many attempts. Please try again shortly.</string>
+    <string name="login_error_server">Something went wrong. Please try again.</string>
+    <string name="login_error_network">Can\'t reach the site. Check your connection and try again.</string>
+
+    <!-- ── Auth: account (§5, §6.3) ────────────────────────────────────── -->
+    <string name="account_title">My account</string>
+    <string name="account_sign_out">Sign out</string>
+    <string name="account_sign_out_all">Sign out on all devices</string>
+
+    <!-- Username -->
+    <string name="account_username_title">Username</string>
+    <string name="account_username_action">Change username</string>
+    <string name="account_username_changed">Username updated.</string>
+    <string name="account_username_taken">That username is already taken.</string>
+    <string name="account_username_error">Couldn\'t change your username.</string>
+
+    <!-- Password -->
+    <string name="account_password_title">Password</string>
+    <string name="account_password_set_title">Set a password</string>
+    <string name="account_password_set_hint">Your account was created through a linked provider and has no password yet. Set one to also sign in with a username and password.</string>
+    <string name="account_password_current">Current password</string>
+    <string name="account_password_new">New password</string>
+    <string name="account_password_action">Change password</string>
+    <string name="account_password_set_action">Set password</string>
+    <string name="account_password_changed">Password changed.</string>
+    <string name="account_password_error">Couldn\'t change your password. Check your current password and try again.</string>
+
+    <!-- Two-factor -->
+    <string name="account_totp_title">Two-factor authentication</string>
+    <string name="account_totp_on">Enabled</string>
+    <string name="account_totp_off">Not enabled</string>
+    <string name="account_totp_scan">Scan this code with your authenticator app, then enter the current code.</string>
+    <string name="account_totp_qr_desc">Two-factor QR code</string>
+    <string name="account_totp_setup">Set up two-factor</string>
+    <string name="account_totp_confirm">Confirm &amp; enable</string>
+    <string name="account_totp_cancel">Cancel</string>
+    <string name="account_totp_disable">Disable two-factor</string>
+    <string name="account_totp_enabled">Two-factor is now enabled.</string>
+    <string name="account_totp_disabled">Two-factor has been disabled.</string>
+    <string name="account_totp_code_error">That code isn\'t valid. Try the current code.</string>
+    <string name="account_totp_setup_error">Couldn\'t start two-factor setup.</string>
+
+    <!-- Linked identities -->
+    <string name="account_identities_title">Linked accounts</string>
+    <string name="account_identities_empty">No linked sign-in providers.</string>
+    <string name="account_identity_unlink">Unlink</string>
+    <string name="account_identity_unlinked">Account unlinked.</string>
+    <string name="account_identity_error">Couldn\'t unlink that account.</string>
+
+    <!-- ── Player: game-account linking (§6.3) ─────────────────────────── -->
+    <string name="player_link_title">Link your game account</string>
+    <string name="player_link_hint">In game, type [link to get a one-time code, then enter it here to see your characters, vendors and houses.</string>
+    <string name="player_link_code">Link code</string>
+    <string name="player_link_action">Link account</string>
+    <string name="player_link_ok">Account linked.</string>
+    <string name="player_link_bad_code">That code is unknown or has expired. Run [link in game for a new one.</string>
+    <string name="player_link_error">Couldn\'t link that code. Please try again.</string>
+
+    <string name="player_create_title">Create a game account</string>
+    <string name="player_create_account">Account name</string>
+    <string name="player_create_password">Password</string>
+    <string name="player_create_action">Create account</string>
+    <string name="player_create_ok">Game account created and linked.</string>
+    <string name="player_create_taken">That account name is already taken.</string>
+    <string name="player_create_capped">The account limit for your network has been reached.</string>
+    <string name="player_create_unavailable">Game-account signup isn\'t available right now.</string>
+    <string name="player_create_rejected">That account name or password wasn\'t accepted.</string>
+    <string name="player_create_error">Couldn\'t create that account. Please try again.</string>
+
+    <!-- ── Player: characters (§6.3) ───────────────────────────────────── -->
+    <string name="player_characters_empty">Link a game account above to see your characters.</string>
+    <string name="player_roster_loading">Loading…</string>
+    <string name="player_roster_empty">No characters on this account.</string>
+    <string name="player_char_unknown">Unknown</string>
+    <string name="player_char_online">Online</string>
+    <string name="player_char_offline">Offline</string>
+
+    <!-- Character sheet -->
+    <string name="player_char_governor">Governor of %1$s</string>
+    <string name="player_char_guildmaster">Guildmaster, %1$s</string>
+    <string name="player_char_attributes">Attributes</string>
+    <string name="player_char_vitals">Vitals</string>
+    <string name="player_char_str">STR</string>
+    <string name="player_char_dex">DEX</string>
+    <string name="player_char_int">INT</string>
+    <string name="player_char_hits">Hits</string>
+    <string name="player_char_mana">Mana</string>
+    <string name="player_char_stam">Stamina</string>
+    <string name="player_char_resistances">Resistances</string>
+    <string name="player_char_phys">Physical</string>
+    <string name="player_char_fire">Fire</string>
+    <string name="player_char_cold">Cold</string>
+    <string name="player_char_pois">Poison</string>
+    <string name="player_char_energy">Energy</string>
+    <string name="player_char_skills">Skills</string>
+    <string name="player_char_equipment">Equipment</string>
+    <string name="player_char_item">Item</string>
+    <string name="player_char_item_id">id %1$d</string>
+    <string name="player_char_item_hue">hue %1$d</string>
+
+    <!-- ── Player: vendors &amp; sales (§6.3) ──────────────────────────── -->
+    <string name="player_sales_title">Recent sales</string>
+    <string name="player_sales_empty">No recent sales.</string>
+    <string name="player_gold_amount">%1$s gp</string>
+    <string name="player_vendors_no_accounts">Link a game account to see your vendors.</string>
+    <string name="player_vendors_empty">No vendors on this account.</string>
+    <string name="player_vendor_fallback">Player vendor</string>
+    <string name="player_vendor_hold">Holding %1$s gp</string>
+    <string name="player_vendor_no_listings">No items listed.</string>
+    <string name="player_listing_item">Item %1$d ×%2$d</string>
+
+    <!-- ── Player: houses (§6.3) ───────────────────────────────────────── -->
+    <string name="player_houses_empty">You don\'t have any houses on your linked accounts.</string>
+    <string name="player_house_fallback">A house</string>
+    <string name="player_house_stage">Status: %1$s</string>
+    <string name="role_player">Player</string>
+    <string name="role_moderator">Moderator</string>
+    <string name="role_editor">Editor</string>
+    <string name="role_admin">Administrator</string>
+    <string name="role_unknown">Signed in</string>
+
     <!-- ── Home / status (§6.1) ────────────────────────────────────────── -->
     <string name="home_status_live">Online</string>
     <string name="home_status_maintenance">Under maintenance</string>

app/src/main/res/values/themes.xml

@@ -6,5 +6,11 @@
   background / status-bar behavior for launch.
 -->
 <resources>
-    <style name="Theme.RunicGateway" parent="android:Theme.Material.Light.NoActionBar" />
+    <!-- Dark launch theme (the app is dark-only, M5). Sets the window background to the
+         page color so the pre-Compose frame matches; Compose owns the live UI theme. -->
+    <style name="Theme.RunicGateway" parent="android:Theme.Material.NoActionBar">
+        <item name="android:windowBackground">@color/launch_background</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+    </style>
 </resources>

app/src/test/java/com/runicgateway/app/core/auth/SessionManagerTest.kt

@@ -0,0 +1,101 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.core.auth
+
+import com.runicgateway.app.data.api.dto.SafeUserDto
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * Session lifecycle over a fake [TokenStore] (PLAN.md §4.3): restore on launch,
+ * establish/rotate/tear-down, and the invariant that the in-memory token pair and
+ * the observable [Session] state always agree.
+ */
+class SessionManagerTest {
+
+    /** In-memory stand-in for EncryptedSharedPreferences. */
+    private class FakeTokenStore(var stored: StoredSession? = null) : TokenStore {
+        override fun load(): StoredSession? = stored
+        override fun save(session: StoredSession) { stored = session }
+        override fun clear() { stored = null }
+    }
+
+    private fun user(id: Long = 1, name: String = "alice", role: String = "player") =
+        SafeUserDto(id = id, username = name, role = role)
+
+    @Test fun startsSignedOutWithNoStoredSession() {
+        val mgr = SessionManager(FakeTokenStore())
+        assertEquals(Session.SignedOut, mgr.state.value)
+        assertNull(mgr.currentAccessToken())
+        assertNull(mgr.currentRefreshToken())
+    }
+
+    @Test fun restoresSignedInFromStore() {
+        val store = FakeTokenStore(
+            StoredSession("access-1", "refresh-1", 5, "bob", "admin"),
+        )
+        val mgr = SessionManager(store)
+        val state = mgr.state.value
+        assertTrue(state is Session.SignedIn)
+        assertEquals("bob", (state as Session.SignedIn).user.username)
+        assertEquals(Role.ADMIN, state.user.role)
+        assertEquals("access-1", mgr.currentAccessToken())
+        assertEquals("refresh-1", mgr.currentRefreshToken())
+    }
+
+    @Test fun signInPersistsAndExposesTokens() {
+        val store = FakeTokenStore()
+        val mgr = SessionManager(store)
+        mgr.onSignedIn("access-A", "refresh-A", user(role = "player"))
+
+        assertTrue(mgr.state.value is Session.SignedIn)
+        assertEquals("access-A", mgr.currentAccessToken())
+        assertEquals("refresh-A", mgr.currentRefreshToken())
+        // Persisted so a relaunch restores it.
+        assertEquals("refresh-A", store.stored?.refreshToken)
+    }
+
+    @Test fun refreshRotatesTokensWhileSignedIn() {
+        val mgr = SessionManager(FakeTokenStore())
+        mgr.onSignedIn("access-A", "refresh-A", user())
+        mgr.onRefreshed("access-B", "refresh-B", user())
+
+        assertEquals("access-B", mgr.currentAccessToken())
+        assertEquals("refresh-B", mgr.currentRefreshToken())
+    }
+
+    @Test fun refreshIsNoOpAfterSignOut() {
+        val mgr = SessionManager(FakeTokenStore())
+        mgr.onSignedIn("access-A", "refresh-A", user())
+        mgr.onSignedOut()
+        // A refresh that races a logout must not resurrect the session.
+        mgr.onRefreshed("access-B", "refresh-B", user())
+
+        assertEquals(Session.SignedOut, mgr.state.value)
+        assertNull(mgr.currentAccessToken())
+    }
+
+    @Test fun userRefreshUpdatesRoleKeepingTokens() {
+        val mgr = SessionManager(FakeTokenStore())
+        mgr.onSignedIn("access-A", "refresh-A", user(role = "player"))
+        // A /auth/me re-validation reports a promotion.
+        mgr.onUserRefreshed(user(role = "editor"))
+
+        val state = mgr.state.value as Session.SignedIn
+        assertEquals(Role.EDITOR, state.user.role)
+        assertEquals("access-A", mgr.currentAccessToken())
+    }
+
+    @Test fun signOutClearsStoreAndState() {
+        val store = FakeTokenStore()
+        val mgr = SessionManager(store)
+        mgr.onSignedIn("access-A", "refresh-A", user())
+        mgr.onSignedOut()
+
+        assertEquals(Session.SignedOut, mgr.state.value)
+        assertNull(store.stored)
+    }
+}

app/src/test/java/com/runicgateway/app/data/api/dto/AccountDtoTest.kt

@@ -0,0 +1,64 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.json.Json
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * Decoding tests for the self-service ("me") account DTOs (PLAN.md §6.3, §6.4).
+ * Shapes come from the website's `account.controller` handlers surfaced under
+ * `/auth/me/account*`; unknown keys are ignored (additive fields, §8).
+ */
+class AccountDtoTest {
+
+    private val json = Json {
+        ignoreUnknownKeys = true
+        explicitNulls = false
+        coerceInputValues = true
+    }
+
+    @Test fun accountDecodesSecurityFlags() {
+        val dto = json.decodeFromString<PlayerAccountDto>(
+            """{"id":42,"username":"newplayer","role":"player","email":"p@example.com",
+               "status":"active","totp_enabled":false,"has_password":true}""",
+        )
+        assertEquals(42L, dto.id)
+        assertEquals("newplayer", dto.username)
+        assertTrue(dto.has_password)
+        assertFalse(dto.totp_enabled)
+    }
+
+    @Test fun ssoAccountHasNoPassword() {
+        // An SSO-provisioned account omits email and reports has_password=false.
+        val dto = json.decodeFromString<PlayerAccountDto>(
+            """{"id":7,"username":"ssouser","role":"player","email":null,
+               "status":"active","totp_enabled":true,"has_password":false}""",
+        )
+        assertFalse(dto.has_password)
+        assertTrue(dto.totp_enabled)
+    }
+
+    @Test fun totpSetupDecodesQr() {
+        val dto = json.decodeFromString<TotpSetupDto>(
+            """{"otpauthUrl":"otpauth://totp/Runic:admin?secret=ABC","qr":"data:image/png;base64,iVBORw0KGgo="}""",
+        )
+        assertTrue(dto.qr!!.startsWith("data:image/png;base64,"))
+    }
+
+    @Test fun totpStateDecodes() {
+        assertTrue(json.decodeFromString<TotpStateDto>("""{"totp_enabled":true}""").totp_enabled)
+    }
+
+    @Test fun linkedIdentityDecodes() {
+        val dto = json.decodeFromString<LinkedIdentityDto>(
+            """{"provider":"discord","email":"u@example.com","linked_at":"2026-07-19T22:00:00Z"}""",
+        )
+        assertEquals("discord", dto.provider)
+        assertEquals("u@example.com", dto.email)
+    }
+}

app/src/test/java/com/runicgateway/app/data/api/dto/AuthDtoTest.kt

@@ -0,0 +1,71 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.json.Json
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * Decoding tests for the mobile auth wire shapes (PLAN.md §4.1). Field names come
+ * from the website's `auth/mobile` controller + `/auth/me`; the parser ignores
+ * unknown keys (additive backend fields, §8).
+ */
+class AuthDtoTest {
+
+    private val json = Json {
+        ignoreUnknownKeys = true
+        explicitNulls = false
+        coerceInputValues = true
+    }
+
+    @Test fun tokenResponseDecodesWithSafeUser() {
+        val dto = json.decodeFromString<MobileTokenResponse>(
+            """{"accessToken":"aaa.bbb.ccc","refreshToken":"r-123","expiresIn":"15m",
+               "user":{"id":7,"username":"alice","role":"player"}}""",
+        )
+        assertEquals("aaa.bbb.ccc", dto.accessToken)
+        assertEquals("r-123", dto.refreshToken)
+        assertEquals("15m", dto.expiresIn)
+        assertEquals(7L, dto.user.id)
+        assertEquals("alice", dto.user.username)
+        assertEquals("player", dto.user.role)
+    }
+
+    @Test fun meResponseIgnoresExtraUserFields() {
+        // /auth/me returns the full safe user row — the app only needs id/username/role.
+        val dto = json.decodeFromString<MeResponse>(
+            """{"user":{"id":1,"username":"staff","role":"editor","status":"active",
+               "createdAt":"2026-01-01T00:00:00Z","totp_enabled":true}}""",
+        )
+        assertEquals(1L, dto.user.id)
+        assertEquals("editor", dto.user.role)
+    }
+
+    @Test fun totpRequiredErrorDecodes() {
+        val dto = json.decodeFromString<TotpRequiredError>(
+            """{"totpRequired":true,"message":"A verification code is required."}""",
+        )
+        assertTrue(dto.totpRequired)
+    }
+
+    @Test fun totpRequiredDefaultsFalseForPlainCredentialFailure() {
+        // A bad-password 401 has no totpRequired flag — must not read as a 2FA prompt.
+        val dto = json.decodeFromString<TotpRequiredError>(
+            """{"message":"Incorrect username or password."}""",
+        )
+        assertFalse(dto.totpRequired)
+    }
+
+    @Test fun tokenResponseExpiresInOptional() {
+        val dto = json.decodeFromString<MobileTokenResponse>(
+            """{"accessToken":"a","refreshToken":"r","user":{"id":2,"username":"bob","role":"admin"}}""",
+        )
+        assertNull(dto.expiresIn)
+        assertEquals("admin", dto.user.role)
+    }
+}

app/src/test/java/com/runicgateway/app/data/api/dto/PlayerShardDtoTest.kt

@@ -0,0 +1,102 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.api.dto
+
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonPrimitive
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * Decoding tests for a player's own game-data DTOs (PLAN.md §6.3). Shapes come from
+ * the website's `player/shard.controller.js` + `docs/link/INTEGRATION.md` §5. The
+ * roster / char / vendor reads are permissive objects, so the parser must ignore
+ * unknown keys (additive fields, §8) and tolerate hex-string serials.
+ */
+class PlayerShardDtoTest {
+
+    private val json = Json {
+        ignoreUnknownKeys = true
+        explicitNulls = false
+        coerceInputValues = true
+    }
+
+    @Test fun rosterDecodesCharsIncludingOffline() {
+        val dto = json.decodeFromString<RosterDto>(
+            """{"kind":"account.roster","acct":"whitlocktech",
+               "chars":[{"slot":0,"serial":"0x24C","name":"Darrow","body":400,"online":false}]}""",
+        )
+        assertEquals("whitlocktech", dto.acct)
+        assertEquals(1, dto.chars.size)
+        assertEquals("0x24C", dto.chars[0].serial)
+        assertEquals("Darrow", dto.chars[0].name)
+    }
+
+    @Test fun charProfileDecodesStatsSkillsEquipmentAndTitles() {
+        val dto = json.decodeFromString<CharProfileDto>(
+            """{"kind":"char.profile","serial":"0x24C","name":"Darrow","online":true,"acct":"wt",
+               "stats":{"str":100,"dex":90,"int":75,"hits":100,"hitsMax":110,
+                        "resist":{"phys":70,"fire":68,"cold":60,"pois":55,"energy":50}},
+               "skills":[{"n":"Swordsmanship","base":100.0,"value":120.0,"cap":120.0},
+                         {"n":"Anatomy","base":0.0,"value":0.0,"cap":100.0}],
+               "equipment":[{"serial":"0x40","layer":"OneHanded","itemId":5040,"hue":1153,
+                             "mods":{"DamageIncrease":50,"HitLightning":30}}],
+               "titles":{"selected":0,"reward":["Knight"],"fameKarma":"The Great"},
+               "guild":{"name":"Knights","abbr":"KNT"},"governorOf":["Britain"]}""",
+        )
+        assertEquals("Darrow", dto.name)
+        assertTrue(dto.online)
+        assertEquals(100, dto.stats?.str)
+        assertEquals(70, dto.stats?.resist?.phys)
+        assertEquals(2, dto.skills.size)
+        assertEquals(120.0, dto.skills[0].value!!, 0.0)
+        val mods = dto.equipment[0].mods
+        assertNotNull(mods)
+        assertEquals("50", mods!!["DamageIncrease"]!!.jsonPrimitive.content)
+        assertEquals("KNT", dto.guild?.abbr)
+        assertEquals(listOf("Britain"), dto.governorOf)
+    }
+
+    @Test fun vendorSnapshotDecodesListings() {
+        val dto = json.decodeFromString<VendorSnapshotDto>(
+            """{"kind":"vendor.snapshot","acct":"seed_000",
+               "vendors":[{"serial":"0x2C0","shopName":"Seed Shop","holdGold":24186,
+                 "ownerSerial":"0x1F5","map":"Felucca","x":1402,"y":1604,
+                 "listings":[{"serial":"0x4001440F","itemId":3937,"amount":1,"price":69819,"forSale":true}]}]}""",
+        )
+        assertEquals(1, dto.vendors.size)
+        assertEquals(24186L, dto.vendors[0].holdGold)
+        assertEquals(69819L, dto.vendors[0].listings[0].price)
+        assertTrue(dto.vendors[0].listings[0].forSale)
+    }
+
+    @Test fun vendorSaleDecodes() {
+        val dto = json.decodeFromString<VendorSaleDto>(
+            """{"t":1783720195626,"itemType":"Longsword","amount":1,"price":100,
+               "commission":5,"ownerAcct":"whitlocktech"}""",
+        )
+        assertEquals(1783720195626L, dto.t)
+        assertEquals("Longsword", dto.itemType)
+        assertEquals(100L, dto.price)
+    }
+
+    @Test fun playerHouseDecodesHexSerialAndIdoc() {
+        val dto = json.decodeFromString<PlayerHouseDto>(
+            """{"serial":"0x4004705F","stage":"IDOC","map":"Trammel","x":1,"y":2,"z":3,
+               "region":"Britain","name":"An Unnamed House","isIdoc":true,
+               "ownerAcct":"wt","updatedAt":"2026-07-19T22:00:00Z"}""",
+        )
+        assertEquals("0x4004705F", dto.serial)
+        assertEquals("IDOC", dto.stage)
+        assertTrue(dto.isIdoc)
+    }
+
+    @Test fun linkResultDecodes() {
+        val dto = json.decodeFromString<ShardLinkResultDto>("""{"linked":true,"account":"whitlocktech"}""")
+        assertTrue(dto.linked)
+        assertEquals("whitlocktech", dto.account)
+    }
+}

app/src/test/java/com/runicgateway/app/data/repository/ConnectionVersionGuardTest.kt

@@ -0,0 +1,51 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.data.repository
+
+import com.runicgateway.app.data.api.dto.VersionDto
+import com.runicgateway.app.data.repository.ConnectionRepository.Companion.evaluateVersion
+import com.runicgateway.app.data.repository.ConnectionRepository.VersionVerdict
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * The connect-probe version guard (§3): a Runic Gateway backend on the app's
+ * supported API is accepted; a wrong service identity or an unsupported API
+ * version is refused clearly rather than mis-rendered.
+ */
+class ConnectionVersionGuardTest {
+
+    @Test
+    fun `matching service and api is Ok`() {
+        val v = VersionDto(service = "runic-gateway", api = "v1", server = "1.2.3")
+        assertEquals(VersionVerdict.Ok, evaluateVersion(v))
+    }
+
+    @Test
+    fun `service id is case-insensitive and trimmed`() {
+        val v = VersionDto(service = "  Runic-Gateway  ", api = "V1", server = "x")
+        assertEquals(VersionVerdict.Ok, evaluateVersion(v))
+    }
+
+    @Test
+    fun `wrong service is NotRunicGateway`() {
+        val v = VersionDto(service = "some-other-app", api = "v1", server = "x")
+        assertEquals(VersionVerdict.NotRunicGateway, evaluateVersion(v))
+    }
+
+    @Test
+    fun `blank api is lenient (older backend) and accepted`() {
+        val v = VersionDto(service = "runic-gateway", api = "", server = "x")
+        assertEquals(VersionVerdict.Ok, evaluateVersion(v))
+    }
+
+    @Test
+    fun `future api version is a mismatch carrying the server value`() {
+        val v = VersionDto(service = "runic-gateway", api = "v2", server = "x")
+        val verdict = evaluateVersion(v)
+        assertTrue(verdict is VersionVerdict.Mismatch)
+        assertEquals("v2", (verdict as VersionVerdict.Mismatch).serverApi)
+    }
+}

app/src/test/java/com/runicgateway/app/ui/navigation/MenuAccessTest.kt

@@ -0,0 +1,67 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.navigation
+
+import com.runicgateway.app.core.auth.Role
+import com.runicgateway.app.core.auth.Session
+import com.runicgateway.app.core.auth.SessionUser
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+/**
+ * The declarative access-level menu filter (PLAN.md §5): one list gated by the
+ * current session, not scattered `if role ==` checks.
+ */
+class MenuAccessTest {
+
+    private fun signedIn(role: Role) =
+        Session.SignedIn(SessionUser(id = 1, username = "u", role = role))
+
+    private fun routes(session: Session) =
+        visibleEntries(APP_MENU, session).map { it.route }
+
+    @Test fun anonymousSeesOnlyPublicEntries() {
+        val visible = routes(Session.SignedOut)
+        assertTrue(visible.contains(Routes.HOME))
+        assertTrue(visible.contains(Routes.SHARD))
+        // Signed-in surfaces are hidden.
+        assertFalse(visible.contains(Routes.ACCOUNT))
+    }
+
+    @Test fun signedInPlayerSeesAccount() {
+        val visible = routes(signedIn(Role.PLAYER))
+        assertTrue(visible.contains(Routes.ACCOUNT))
+        assertTrue(visible.contains(Routes.HOME))
+    }
+
+    @Test fun staffSeeAccountButNoPlayerOnlyGroups() {
+        val visible = routes(signedIn(Role.EDITOR))
+        assertTrue(visible.contains(Routes.ACCOUNT))
+        // No PLAYER-access entry (the M4 game-data groups) leaks to staff.
+        val playerOnly = APP_MENU.filter { it.access == MenuAccess.PLAYER }.map { it.route }
+        assertTrue(playerOnly.none { visible.contains(it) })
+    }
+
+    @Test fun publicEntryCountIsStableAcrossSessions() {
+        val publicCount = APP_MENU.count { it.access == MenuAccess.PUBLIC }
+        assertEquals(publicCount, routes(Session.SignedOut).size)
+    }
+
+    @Test fun roleFromWireMapsKnownAndUnknown() {
+        assertEquals(Role.ADMIN, Role.fromWire("admin"))
+        assertEquals(Role.PLAYER, Role.fromWire("player"))
+        assertEquals(Role.UNKNOWN, Role.fromWire("superuser"))
+        assertEquals(Role.UNKNOWN, Role.fromWire(null))
+    }
+
+    @Test fun playerAccessGatedFunction() {
+        // A synthetic PLAYER-gated entry is visible to a player, hidden from staff/anon.
+        val entries = listOf(MenuEntry("game", 0, MenuAccess.PLAYER))
+        assertTrue(visibleEntries(entries, signedIn(Role.PLAYER)).isNotEmpty())
+        assertTrue(visibleEntries(entries, signedIn(Role.ADMIN)).isEmpty())
+        assertTrue(visibleEntries(entries, Session.SignedOut).isEmpty())
+    }
+}

app/src/test/java/com/runicgateway/app/ui/player/CharacterSheetHelpersTest.kt

@@ -0,0 +1,54 @@
+/*
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+package com.runicgateway.app.ui.player
+
+import com.runicgateway.app.data.api.dto.TitlesDto
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+/**
+ * Unit tests for the character-sheet display helpers (PLAN.md §6.3), mirroring the
+ * website's `CharacterSheet.jsx#displayTitles`: fame/karma + skill + a *literal*
+ * selected reward title, dropping bare cliloc numbers the app can't resolve.
+ */
+class CharacterSheetHelpersTest {
+
+    @Test fun formatSkillDropsTrailingZero() {
+        assertEquals("100", formatSkill(100.0))
+        assertEquals("85.3", formatSkill(85.3))
+    }
+
+    @Test fun displayTitlesEmptyForNull() {
+        assertEquals(emptyList<String>(), displayTitles(null))
+    }
+
+    @Test fun displayTitlesUsesFameKarmaSkillAndSelectedLiteralReward() {
+        val titles = TitlesDto(
+            selected = 1,
+            reward = listOf("1049565", "Slayer of Dragons"),
+            fameKarma = "The Great",
+            skill = "Grandmaster Swordsman",
+        )
+        assertEquals(
+            listOf("The Great", "Grandmaster Swordsman", "Slayer of Dragons"),
+            displayTitles(titles),
+        )
+    }
+
+    @Test fun displayTitlesSkipsNumericSelectedReward() {
+        // Selected points at a bare cliloc number → skipped (no cliloc table).
+        val titles = TitlesDto(selected = 0, reward = listOf("1049565"))
+        assertEquals(emptyList<String>(), displayTitles(titles))
+    }
+
+    @Test fun displayTitlesFallsBackToFirstLiteralWhenNoneSelected() {
+        val titles = TitlesDto(selected = -1, reward = listOf("1049565", "Champion"))
+        assertEquals(listOf("Champion"), displayTitles(titles))
+    }
+
+    @Test fun displayTitlesDeduplicates() {
+        val titles = TitlesDto(selected = 0, reward = listOf("The Great"), fameKarma = "The Great")
+        assertEquals(listOf("The Great"), displayTitles(titles))
+    }
+}

gradle/libs.versions.toml

@@ -32,6 +32,9 @@ retrofitSerializationConverter = "1.0.0"
 datastore = "1.1.1"
 securityCrypto = "1.1.0-alpha06"
 
+# Web hand-off (Chrome Custom Tabs) — §4.2
+browser = "1.8.0"
+
 # Images
 coil = "2.7.0"
 
@@ -79,6 +82,9 @@ retrofit-kotlinx-serialization-converter = { group = "com.jakewharton.retrofit",
 androidx-datastore-preferences = { group = "androidx.datastore", name = "datastore-preferences", version.ref = "datastore" }
 androidx-security-crypto = { group = "androidx.security", name = "security-crypto", version.ref = "securityCrypto" }
 
+# Web hand-off
+androidx-browser = { group = "androidx.browser", name = "browser", version.ref = "browser" }
+
 # Images
 coil-compose = { group = "io.coil-kt", name = "coil-compose", version.ref = "coil" }