docs(android): link the M11 app PRs and name the remaining gate

Both parts are built: Android-app#30 (the visibility rules + read-model adds)
and #31 (the four screens, stacked on it). The on-device five-rung walk against
a website on the cutover branch is what edge->main is now actually waiting on.

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

README.md

@@ -20,6 +20,9 @@ ci/        cross-cutting CI/quality notes
 | [HERO_EDITOR.md](website/HERO_EDITOR.md) | Hero canvas editor feature spec |
 | [WIKI_UPGRADE.md](website/WIKI_UPGRADE.md) | Wiki subsystem upgrade notes |
 | [SHARD_VISIBILITY.md](website/SHARD_VISIBILITY.md) | Who sees which shard data — the admin-configurable audience framework |
+| [SPAWN_ATLAS.md](website/SPAWN_ATLAS.md) | The bestiary / spawn atlas: what the shard contains, parsed from its own ServUO tree |
+| [CLILOCS.md](website/CLILOCS.md) | UO's id → name table: converting one from your client so items have names |
+| [MARKETPLACE.md](website/MARKETPLACE.md) | The player-vendor index: how it is gathered, what it costs, how to tune it |
 | [website-README.md](website/website-README.md) | Snapshot of the website repo's README (setup/run reference) |
 | [PROJECT_TREE.md](website/PROJECT_TREE.md) | Auto-generated snapshot of the repo's tracked file layout |
 

android/PLAN.md

@@ -1,6 +1,6 @@
 # Android App — Plan
 
-Status: **M0–M7 landed; M7 (push notifications) both parts done — Part 1 backend (website#78) and Part 2 app (Android-app#15) plus a small `push.ntfyUrl` settings addition (website#79). Remaining: set the shard's `NTFY_*` deploy config so push lights up, and cut the v1 tag. M9 (native SSO login) is now underway backend-first — the Mobile SSO Authorization Bridge is being built in `website/` + `docs/` ahead of the app-side client (§4.2, §9 M9); custom-scheme callback only for now, App Links deferred (see [`APP_LINKS.md`](./APP_LINKS.md)).** This document is the
+Status: **M0–M7 landed; M7 (push notifications) both parts done — Part 1 backend (website#78) and Part 2 app (Android-app#15) plus a small `push.ntfyUrl` settings addition (website#79). Remaining: set the shard's `NTFY_*` deploy config so push lights up, and cut the v1 tag. M9 (native SSO login) is now underway backend-first — the Mobile SSO Authorization Bridge is being built in `website/` + `docs/` ahead of the app-side client (§4.2, §9 M9); custom-scheme callback only for now, App Links deferred (see [`APP_LINKS.md`](./APP_LINKS.md)). **M11 (Protocol 3.0 shard parity)** is scoped and next: the app sees none of the four shard features v3 added (`ruleset`, `leaderboards`, `market`, `atlas`) and does not consult `GET /public/shard/features`, so it gates shard nav on session role alone while an admin can switch any of those surfaces off or raise its audience — the v3 `edge` → `main` cutover is held until it lands (§9 M11).** This document is the
 design contract for the `RunicGateway/Android-app` repo. It was written before implementation so the
 API changes it depends on could be landed in `website/` and `docs/` first. The authoritative API
 reference is the committed OpenAPI spec at `website/server/swagger/swagger-output.json` (regenerated
@@ -631,6 +631,8 @@ not rank).
 | News & content | everyone | `/public/posts/:category`, `/public/pages/:slug` |
 | Wiki | everyone | `/public/wiki`, `/public/wiki/categories`, `/public/wiki/tags`, `/public/wiki/:slug` |
 | Shard (live) | everyone | `/public/shard/*` + `/public/shard/stream` (SSE) |
+| **Rules / Leaderboards / Market** | everyone, *if the shard publishes them* | `/public/shard/{ruleset,points,market}` (M11) |
+| **Atlas** (bestiary) | everyone, *if the shard publishes it* | `/public/atlas/*` (M11) |
 | Contact | everyone | `/public/contact` |
 | **My Account** | signed-in | `/player/account/*` (or `/admin/account/*` for staff — see §6.4) |
 | **My Characters / Vendors / Houses** | `player` (linked) | `/player/shard/*` |
@@ -639,6 +641,12 @@ not rank).
 Guidelines:
 - The menu is **declarative + data-driven**, not a pile of `if role ==` checks — one list of entries
   with a `minAccess`/`requiredCapability` field, filtered by the session.
+- **Session role is not the only gate on shard surfaces (M11).** Every shard-derived feature is
+  *admin-configurable* — it can be switched off or raised to a higher audience rung — so a shard entry
+  is filtered by the session role **and** by `GET /public/shard/features`, which reports the features
+  the caller may actually reach. While that answer is unknown (in flight, or the lookup failed) the app
+  shows everything: the server gates regardless, and a nav that flickers in on every load is worse than
+  a link that briefly `403`s.
 - Never hide the fact that more exists behind auth in a way that misleads; anonymous users see public
   groups and a "Sign in" affordance.
 - The server is the source of truth: a hidden/greyed item is a UX convenience; every gated call still
@@ -663,9 +671,15 @@ Guidelines:
 ### 6.2 Public shard (live)
 - Status/online/feed/economy/champs/guilds/governors(+history)/presence/houses/idoc — the
   `/public/shard/*` GETs.
-- **Live updates** — subscribe to `GET /public/shard/stream` (SSE, safe kinds only) and patch the
-  in-memory boards in place (champ/guild/city/house/presence update+remove frames). Reconnect with
-  backoff; fall back to poll if SSE drops.
+- **Live updates** — subscribe to `GET /public/shard/stream` (SSE) and patch the in-memory boards in
+  place (champ/guild/city/house/presence update+remove frames). Reconnect with backoff; fall back to
+  poll if SSE drops. What arrives on the stream is **resolved from the caller's audience rung at
+  subscribe time**, not from a fixed allowlist (Protocol 3.0 §3.6) — the stream request carries the
+  bearer like every other call, so a signed-in app session sees exactly what the same account sees on
+  the web.
+- **Visibility + the Protocol 3.0 surfaces (M11)** — `GET /public/shard/features` drives which of these
+  the menu offers; `GET /public/shard/{ruleset,points,points/:system,market,market/meta,market/vendors/:serial}`
+  and `GET /public/atlas/*` are the new reads. Full contract and traps in §9 M11.
 
 ### 6.3 Player self-service & game data (bearer)
 - **Account** — `GET /player/account`; `PATCH /player/account/username`;
@@ -675,6 +689,11 @@ Guidelines:
 - **My game data** — `GET /player/shard/roster/:account`, `/char/:serial`, `/vendors/:account`,
   `/sales`, `/houses`. All ownership-checked server-side; a `503` means shard/sidecar down → show an
   "offline, retry" state (see §7).
+- **The character sheet carries two things the app does not yet read (M11):** the `points` block
+  (per-character loyalty/points standings, Protocol 3.0 §7.3) and the server-resolved cliloc names on
+  `equipment[].clilocName` / `titles.rewardResolved` (§8.6). Both are served **ungated** on this route —
+  a character's own standings are self-service data and do not depend on the public `leaderboards`
+  feature being visible, which is the behavior the app must mirror rather than re-gate.
 - **Presentation is text-only for v1.** Character sheets and vendor listings render as data/text — no
   item icons or paperdoll art. A richer "pretty paperdoll" view is a **future** enhancement (pending the
   art/asset work on the platform side) and is explicitly out of the first release.
@@ -883,10 +902,94 @@ push, and Play (M6–M8) follow the designed app.
       shard-write actions degrade gracefully when the sidecar is offline. Excluded: hero/CMS block
       editor, Discord-bot config, uo-link config, OAuth-provider setup.
 
+12. **M11 — Protocol 3.0 shard parity** (post-v1; scoped 2026-07-30). The website's Protocol 3.0 work
+    added four shard features and, with them, an **admin-configurable visibility framework** the app
+    knows nothing about. `link/v3.md` §10 deferred the app side as a follow-up; it is now scoped
+    deliberately, and **the v3 `edge` → `main` cutover is held until both parts land** so web and app
+    surface the same shard on the same day (decided 2026-07-30).
+
+    Neither part is coupled to the cutover *merge order*, which is what makes holding it a schedule
+    decision rather than a technical one: against a pre-v3 website every new route and
+    `/public/shard/features` simply `404`s, and each consumer below falls back to exactly today's
+    behavior. The app declares no protocol version and never talks to the sidecar.
+
+    **Both parts are built and in review:** Part 1 `RunicGateway/Android-app#30`, Part 2 (stacked on
+    it) `#31`. 336 unit tests pass and lint is clean on both; the on-device five-rung walk below is
+    the remaining gate, and it is what the cutover is actually waiting on.
+
+    - **Part 1 — the visibility rules + the read-model adds.** The security-shaped half, reviewed on
+      its own:
+      - `GET /public/shard/features` → `{ level, features[] }`: the features **this caller** may reach.
+        A new singleton cache mirrors the web client's (`lib/useShardFeatures.js`): per-viewer but
+        stable for a session, invalidated on sign-in/out and on a server switch.
+      - `MenuEntry` gains `feature: String?` beside its existing `access`, so the one declarative menu
+        (§5) filters on the session role **and** the shard's live feature config. While the lookup is
+        in flight or has failed, **show everything** — the same deliberate fail-open the web client
+        takes, because the server gates regardless and a nav that flickers in on every load is worse
+        than a link that briefly `403`s. The gate is server-side; hiding is presentation.
+      - **`404` and `403` mean different things here** and neither is a generic error:
+        `requireFeature` `404`s a *disabled* feature (deliberately not disclosing that it exists) and
+        `403`s a viewer *below its audience*. Both render "not available on this shard", alongside the
+        existing `503` = shard offline (§7).
+      - **The `level` from `/features` is authoritative — do not re-derive the rung from the role.**
+        The server's ladder is `anonymous → logged_in → player → staff → admin`, where `player` means
+        *a linked game account* and staff always satisfy `player` (the same superset rule `Menu.kt`
+        already encodes as `isPlayer || isStaff`).
+      - **`char.profile.points`** → the "Loyalty & Points" block the web character sheet gained:
+        `CharProfileDto.points[{system, nameString, points, maxPoints, rank?}]`. Three traps, all of
+        them things a real shard does and a fake one does not (`v3.md` §7.5): `maxPoints == 0` means
+        **uncapped** and is the *common* case, so nothing may divide by it; `nameString` is usually
+        `null` because most systems name themselves with a cliloc, making the humanise-the-`system`-key
+        path the **primary** one rather than a fallback; and `rank` is absent unless the shard runs
+        `PointsProfileRank=true` — absent and "unranked" are different answers.
+      - **Cliloc-resolved names** (`v3.md` §8.6, already live on the website): `EquipmentDto` gains
+        `name` + `clilocName` and `TitlesDto` gains `rewardResolved`, so equipment stops rendering as a
+        layer or a bare id. Precedence is `name → clilocName → layer`: a player-given name outranks the
+        resolved type name, and the server applies the same order. A shard with no cliloc table
+        configured sends neither field and the sheet renders exactly as it does today.
+      - `ActorDto` keeps its `acct` / `webId` fields (nullable, so nothing breaks) but its KDoc stops
+        describing them as available: they are **locked to the admin rung**, always, and stripped from
+        every response below it.
+    - **Part 2 — the four new screens**, each hidden by its feature name in the menu:
+      - **Rules** — `GET /public/shard/ruleset` (`ruleset`). A `null` body means "the shard has not
+        published its ruleset yet", which is a different state from the feature being disabled. Every
+        block is optional and omitted when its system is off. **`caps.skill` / `caps.totalSkill` are in
+        tenths** (1000 = 100.0) and must be converted — the raw number is actively misleading, not
+        merely unhelpful. Live via the `world.ruleset` frame, which is on the public stream by default.
+      - **Leaderboards** — `GET /public/shard/points`, `/points/:system` (`leaderboards`). The same
+        `maxPoints`/`nameString` traps as the profile block. Live via `points.board`.
+      - **Market** — `GET /public/shard/market` (`q`, `minPrice`, `maxPrice`, `itemId`, `map`, `region`,
+        `sort`, `limit`, `offset`), `/market/meta` for the filter options + staleness, and
+        `/market/vendors/:serial` (`market`). Four things this screen must get right: it is the site's
+        first **rate-limited** public endpoint, so handle `429` the way the contact form does; the
+        *"prices last refreshed N minutes ago"* banner is **required, not decoration** — the shard
+        sweeps vendors round-robin, so a listing can legitimately be a full cycle stale and a page
+        implying live prices sends people to an item that sold twenty minutes ago; a `truncated` shop
+        must say so; and `location` is a **nested object** that an admin may gate away entirely, which
+        the vendor screen renders as "hidden by the shard" (a real answer) rather than as blank
+        coordinates — same for `ownerName` / `ownerSerial`. **The `market` SSE fan-out is off by
+        default** (a live firehose of vendor inventories would be the site's biggest bandwidth
+        consumer), so the screen is a plain paginated read and must never depend on live frames.
+      - **Atlas** — `GET /public/atlas/{creatures,creatures/:slug,regions,landmarks,champions,meta}`
+        (`atlas`). Note the path: `/public/atlas`, **not** `/public/shard` — the atlas is static shard
+        *content*, not live shard *state*, and unlike `/shard/*` it **is** `siteMode`-gated like
+        `/posts` and `/wiki`, so a site in maintenance mode withholds it independently of the sidecar.
+        Two units/naming traps from `v3.md` §6.3: respawn delays are **seconds** throughout, and
+        `points` is a *count* on the search route while `spawners` is the *list* on the detail route.
+    - **Verification** — the five-rung walk (`anonymous`, `logged_in`, `player`, `staff`, `admin`)
+      against a local website on the cutover branch, per
+      [`../link/v3.md`](../link/v3.md) §11 and the shard-visibility smoke harness; plus one pass with
+      **every feature disabled** in Admin → Shard Visibility, confirming the app *hides* each surface
+      instead of erroring on it. Unit tests cover the menu filter (role × feature set), the
+      `404`/`403`/`503` mapping, and DTO decode for each new shape.
+    - **Excluded**, in the same class as M10's exclusions: the admin *configuration* panels — Shard
+      Visibility, Spawn Atlas and Cliloc import — alongside the hero/CMS block editor, Discord-bot
+      config, uo-link config and OAuth-provider setup.
+
 ### Deferred (not a milestone)
 
-- **`/api/mobile` facade migration + app-version floor** — briefly planned as M11 (2026-07-22), now
-  **deferred with no app work scheduled**. The website's router refactor is being done in place with
+- **`/api/mobile` facade migration + app-version floor** — briefly planned as its own milestone
+  (2026-07-22), now **deferred with no app work scheduled**. The website's router refactor is being done in place with
   every URL byte-identical and `/api/v1` is not being retired, so the app's ~70 hardcoded `api/v1/…`
   endpoints, its SSE path, and its SSO URLs keep working untouched. If the mobile contract ever needs
   to diverge from web, the migration comes back — starting from a one-line alias mount on the server,

link/INTEGRATION.md

@@ -31,31 +31,31 @@ Missing or wrong token → **401** `{"error":"missing or invalid auth token"}`.
 
 The wire protocol is versioned so a mismatch is caught immediately instead of failing weirdly.
 
-- Every response carries an **`X-UOLink-Version: 2`** header.
-- `GET /health` and the WebSocket `ws.hello` frame include `"protocol": 2`.
-- **Optionally**, send `X-UOLink-Version: 2` on your requests. If it disagrees with the sidecar, the request is rejected **409 Conflict**:
+- Every response carries an **`X-UOLink-Version: 3`** header.
+- `GET /health` and the WebSocket `ws.hello` frame include `"protocol": 3`.
+- **Optionally**, send `X-UOLink-Version: 3` on your requests. If it disagrees with the sidecar, the request is rejected **409 Conflict**:
 
   ```json
-  { "error": "protocol version mismatch", "sidecar_protocol": 2, "client_protocol": "1" }
+  { "error": "protocol version mismatch", "sidecar_protocol": 3, "client_protocol": "2" }
   ```
 
 Pin the version you built against and compare it to the header (or `/health.protocol`) at startup.
 
 **v2 (Protocol 2.0)** added the account-provisioning surface (§6.x: `POST /accounts/create`, `DELETE /link/{account}`) and the `account.*` events. Outbound event kinds are **additive** — a v1 client that ignores unknown kinds keeps working against the live feed — but the new *endpoints* require a v2 sidecar. If you send `X-UOLink-Version: 1`, calls to the new endpoints are refused with the 409 above.
 
-**v3 (Protocol 3.0) is being built and the version has not been bumped yet.** It is defined as *adds
-`world.ruleset`, `points.board`, `vendor.listing` / `vendor.listing.remove`*, and the bump to
-`X-UOLink-Version: 3` happens **exactly once**, at the end, when [`v3.md`](v3.md) §4's `edge` → `main`
-cutover lands — because a bump is an operator-visible hard break (409 on every protected route, and
-the website's WS closes on the `ws.hello` mismatch), so doing it per phase would break the site
-repeatedly.
+**v3 (Protocol 3.0)** adds `world.ruleset`, `points.board` and `vendor.listing` /
+`vendor.listing.remove`, with the `GET /ruleset`, `/points` and `/market` reads that serve them from
+the sidecar's store. Same shape as the v2 bump: the event kinds are additive, so a v2 client that
+ignores unknown kinds keeps working against the live feed, but the three new endpoints require a v3
+sidecar. There is deliberately **no feature-negotiation array** — v3 implies all three kinds, so the
+version number alone tells you what is available.
 
-Until then, sidecars on `edge` still report `2` while already carrying some v3 kinds and endpoints.
-That is safe in the direction that matters: event kinds are additive, and a client that ignores
-unknown kinds and tolerates a `404` on a not-yet-present endpoint keeps working. What you must **not**
-do is infer feature availability from the version number during this window — probe the endpoint, or
-treat a missing `world.ruleset` as "this shard hasn't published one". There is deliberately **no
-feature-negotiation array**: v3 implies all three kinds.
+**Upgrading a v2 integration.** The bump is an operator-visible hard break in one direction only: a
+client still declaring `2` gets a 409 on every protected route and, on the WebSocket, a closed
+connection on the `ws.hello` mismatch. So update the pinned version at the same time you deploy the
+v3 sidecar. Nothing that existed in v2 changed shape, so that is the whole migration — the website
+does it with a one-shot boot migration of its `uo_link_config.protocol` row ([`v3.md`](v3.md) §4.1);
+a third-party client changes the constant it sends.
 
 ---
 
@@ -68,7 +68,7 @@ GET /health          (no auth)
 ```json
 {
   "status": "ok",                      // "ok" when plugin connected AND db reachable, else "degraded"
-  "protocol": 1,
+  "protocol": 3,
   "plugin_connected": true,            // is the shard link up right now?
   "database": "ok",                    // "ok" | "error"
   "uptime": "3d 12h",
@@ -91,7 +91,7 @@ A push-only stream of game events as they happen. You do **not** send commands o
 **On connect**, the first frame is:
 
 ```json
-{ "kind": "ws.hello", "protocol": 1 }
+{ "kind": "ws.hello", "protocol": 3 }
 ```
 
 **Then** a continuous stream of event frames, each with at least `t` (epoch ms) and `kind`. Route on `kind`.
@@ -449,6 +449,78 @@ would carry ~25 zeroes. `maxPoints` follows the same `0 == uncapped` rule as the
 a points lookup stops at the character's own row, but a rank must count every row that beats them, in
 every system, on every profile build. Derive rank from `points.board` instead for anyone in the top N.
 
+#### Player-vendor marketplace (Protocol 3.0)
+
+The shard-wide shop index: every player vendor's shop name, owner, location and priced inventory —
+the same set the in-game **Vendor Search** gump reads, published so a site can offer the same search
+from outside the game.
+
+An **amortized round-robin diff sweep**, not a snapshot RPC, and the distinction is load-bearing:
+`rpc.rs::try_route` correlates a reply on the FIRST frame carrying a matching `reqId`, so a chunked
+reply sharing one `reqId` would deliver chunk 1 to the HTTP caller and leak chunks 2..N onto the
+broadcast feed. A whole-world snapshot could not fit in one frame inside the 10 s reply timeout
+either. The per-account `vendor.snapshot` RPC (§5) is unaffected and still serves the player portal.
+
+Each tick inventories at most `Bridge.MarketSweepBatch` vendors (default 25) starting from a
+persistent cursor, so **per-tick cost is bounded independently of world size**; full coverage takes
+`ceil(vendors / batch) × MarketSweepSeconds`. A vendor is emitted only when its contents, prices,
+shop name or location actually change.
+
+| kind | fields | notes |
+|------|--------|-------|
+| `vendor.listing` | `serial`, `shopName`, `ownerSerial`, `ownerName`, `location{}`, `count`, `total`, `truncated`, `items[]` | One vendor's complete shop — **never a delta**. The latest frame for a `serial` replaces the previous one outright. |
+| `vendor.listing.remove` | `serial` | The shop is gone from the index: dismissed, expired, or its owner switched off the in-game Vendor Search flag. |
+
+```json
+{"kind":"vendor.listing","serial":"0x40001234",
+ "shopName":"Darrow's Bargains","ownerSerial":"0x1A2B","ownerName":"Darrow",
+ "location":{"map":"Trammel","x":1421,"y":1699,"z":0,
+             "region":"Britain","house":"Darrow's Villa"},
+ "count":2,"total":2,"truncated":false,
+ "items":[{"serial":"0x40012ABC","itemId":3922,"hue":0,"amount":1,
+           "price":25000,"name":null,"cliloc":1023721},
+          {"serial":"0x40012ABD","itemId":7026,"hue":1157,"amount":3,
+           "price":500,"name":"a shard sigil","cliloc":1041243}],
+ "t":1752489280000}
+```
+
+**Six things consumers get wrong.**
+
+1. **`name` is `null` for nearly every item; `cliloc` is the real label.** Items carry a
+   `LabelNumber`, not a name. The plugin deliberately never calls `VendorSearch.GetItemName`, which
+   builds an `ObjectPropertyList`, serialises it and byte-parses the packet **per item** — a
+   multi-hundred-millisecond stall across a full pass. (It would not work anyway: every current
+   client ships its cliloc files compressed and ServUO's bundled `Ultima.StringList` cannot read
+   them, so the in-game gump has the same gap.) Resolve clilocs consumer-side; a non-null `name` is a
+   player-set literal and is strictly more specific, so **prefer it over the cliloc**.
+2. **`location` is one nested object, and it may be absent entirely.** It is nested so that a
+   consumer gating vendor whereabouts gates one field rather than five that can drift apart — the
+   website's `market.location` rule removes the whole object. Treat a missing `location` as "not
+   published", not as an error.
+3. **`truncated` means the shop holds more than the frame carries.** `count` is what was published,
+   `total` is what the shop actually holds, capped by `Bridge.MarketMaxListings` (default 250). A
+   commodity reseller with thousands of stacked resources is real and an uncapped frame for one is
+   measured in megabytes. Say "showing 250 of 3,104" rather than presenting a partial shop as
+   complete.
+4. **`child: true` means the price buys the ENCLOSING CONTAINER.** ServUO prices a container as a
+   unit and everything inside inherits that price with no `VendorItem` of its own; `DoSearch`
+   surfaces the same flag. A UI that prints the container's price against each item inside it is
+   lying about the shard.
+5. **Opted-out vendors are absent, and that is a privacy control.** `pv.VendorSearch` is the player's
+   own in-game toggle and the sweep honours it — hide your vendor in game and it is hidden here too.
+   The same goes for `Map.Internal` and a null backpack, matching `DoSearch`. Process
+   `vendor.listing.remove` promptly: it is how a player *revoking* that consent reaches you.
+6. **Prices are inherently stale, by design.** The round-robin sweep means a shop can be a full cycle
+   behind. Any UI over this must say how old the data may be — the website derives it from the oldest
+   vendor row.
+
+Entries carry `ownerSerial`/`ownerName` and **never `acct` or `webId`**, the same rule `points.board`
+follows. Absent entirely if the shard runs `Bridge.MarketEnabled=false` or an older plugin. Render
+from `GET /market` (§6) on connect, then keep live with these events — though note that a live
+firehose of whole vendor inventories is the largest stream the bridge produces, and a consumer that
+only needs a browsable index (as the website does) is better served by the REST read plus the
+periodic re-sweep.
+
 ---
 
 ## 5. REST — read queries
@@ -829,6 +901,35 @@ standings built over months and blanking them during a restart reads as data los
 one excluded by `Bridge.PointsSystems`). That is distinct from a published board nobody has scored in
 yet, which is **200** with an empty `top[]` — and the two are worth rendering differently.
 
+### Player-vendor marketplace (Protocol 3.0)
+
+```
+GET /market?limit=200&offset=0
+→ { "vendors": [ {"kind":"vendor.listing","serial":"0x40001234",
+       "shopName":"Darrow's Bargains","ownerSerial":"0x1A2B","ownerName":"Darrow",
+       "location":{"map":"Trammel","x":1421,"y":1699,"z":0,
+                   "region":"Britain","house":"Darrow's Villa"},
+       "count":2,"total":2,"truncated":false,"items":[ ... ],"t":...}, ... ],
+    "total": 137, "limit": 200, "offset": 0 }
+```
+
+Every vendor's latest shop, exactly as `vendor.listing` published it (§4 for the frame and its six
+gotchas). Served from the sidecar's projection, so it answers while the shard is down.
+
+**This is the only PAGED read the sidecar serves**, because it is the only board that can be a whole
+world's inventory. `limit` is clamped to 1..1000 (default 200); `total` is returned so a caller knows
+when to stop rather than paging until it sees a short page, which would race a concurrent sweep.
+Ordering is by **serial**, not by shop name — a serial is stable while a shop name is renameable, so
+a rename mid-walk cannot make a vendor skip or repeat a page.
+
+The route is `/market` and deliberately **not** `/vendors`: `/vendors/{account}` next door is the
+per-account RPC (§5), and two routes a prefix apart meaning "this player's shops" and "every shop on
+the shard" is a trap nobody wins.
+
+Frames are served **verbatim**, owner names and coordinates included. That is not an oversight: the
+sidecar defines no audiences. Deciding who may see what is the consuming site's job — see
+[`v3.md`](v3.md) §3 for how the website does it.
+
 ---
 
 ## 7. Status codes
@@ -854,7 +955,7 @@ yet, which is **200** with an empty `top[]` — and the two are worth rendering
 A typical character page:
 
 ```js
-const H = { "Authorization": `Bearer ${TOKEN}`, "X-UOLink-Version": "2" };
+const H = { "Authorization": `Bearer ${TOKEN}`, "X-UOLink-Version": "3" };
 
 // 1. render the roster
 const roster = await fetch(`${BASE}/roster/${account}`, { headers: H }).then(r => r.json());

link/PLAN.md

@@ -284,6 +284,15 @@ Counts in `hello` are a live snapshot taken on the Core thread, not a cached val
 
 `Item.Name` is frequently `null`; the display name is `LabelNumber`, a cliloc id. **There is no `Data/Cliloc.enu` in this repo** — `BRIDGE_FINDINGS.md` §IV.4 is wrong about this. Cliloc data lives in the client install, which `DataPath` resolves to `D:\Games\Electronic Arts\Ultima Online Classic\`. Ship **both** `name` (when non-null) and `cliloc`, and resolve the number **on the website** against a cliloc map. That avoids a server-side dependency on the client directory.
 
+**Update (3.0).** That recommendation held, and the reason it had to hold turned out to be stronger
+than "avoids a dependency": **ServUO cannot resolve clilocs either.** Every current client ships its
+`Cliloc.*` files compressed, and the bundled `Ultima.StringList` reads only the older plain layout —
+so `VendorSearch.StringList` is null and `VendorSearch.GetItemName` returns `item.Name` on any modern
+shard. The in-game Vendor Search gump has the same gap, which is why `vendor.listing` never calls it.
+Pushing name resolution to the plugin was never an option. See [`v3.md`](v3.md) §8.6 and
+`docs/website/CLILOCS.md` for how the site gets a table instead (the operator converts one from their
+own client, once).
+
 ---
 
 ## 8. Corrections to `BRIDGE_FINDINGS.md`
@@ -327,6 +336,23 @@ leaderboards. `BridgePoints` is the widest read the bridge performs: ten of Serv
 keep a row for every character ever created, so it selects the top N in a single bounded pass rather
 than sorting, and runs on a deliberately slow 300 s interval.
 
+Also shipped: **`vendor.listing`** ([`v3.md`](v3.md) §8), `BridgeMarket.cs`, the shard-wide
+player-vendor index. It introduces the one sweep pattern the bridge did not previously have — an
+**amortized round-robin**. Every other sweep walks its whole collection per tick, which is fine for
+tens of houses or a fixed set of point systems and is not fine for a world of shops whose inventories
+recurse into containers. `BridgeMarket` inventories at most `MarketSweepBatch` vendors per tick from
+a persistent cursor, so the per-tick cost is bounded by the batch rather than by world size, and full
+coverage takes `ceil(vendors / batch) x MarketSweepSeconds`. Measured at **15.4 ms** for a cold tick
+of 25 vendors x 40 listings and **0.3 ms** in steady state (the per-vendor diff), on a shard of 209k
+items / 43k mobiles. It is also the first stream to honour a per-player privacy toggle: ServUO's own
+`PlayerVendor.VendorSearch` flag, so a shop hidden in game is hidden on the site.
+
+That completes 3.0's feature work, so the last step is the version itself: `PROTOCOL_VERSION` **2 →
+3** and the coordinated `edge` → `main` merge across all four repos ([`v3.md`](v3.md) §4 and §4.1).
+The bump is deliberately the *only* thing that happens at that moment — v3 adds kinds and endpoints
+but changes nothing that already existed in v2 — so the operator-visible break is limited to
+re-pinning the version, which the website does for itself in a one-shot boot migration.
+
 ### Config keys (`Config/Bridge.cfg`)
 
 ```ini
@@ -342,7 +368,8 @@ Read in `Configure()` via `Config.Get<T>("Bridge.<Key>", default)`. Key scope is
 
 The set above is the 1.0 sample, not the current one — every later phase added keys (sweep intervals
 for each board, the town-crier/news caps, the admin write plane, account provisioning, and 3.0's
-`RulesetEnabled` / `PublicConnectAddress` / `RulesetIncludeSchedule`, and the `Points*` block).
+`RulesetEnabled` / `PublicConnectAddress` / `RulesetIncludeSchedule`, and the `Points*` and `Market*`
+blocks).
 **`servuo-plugins/overlay/Config/Bridge.cfg`
 is the authoritative, commented list**; `BridgeConfig.cs` holds the defaults.
 

link/v3.md

@@ -1,6 +1,6 @@
 # Protocol 3.0 — Shard content, standings & the visibility framework
 
-**Status:** In progress. All work lands on an `edge` branch in each repo; `edge` → `main` is the v3 cutover.
+**Status:** Feature-complete on `edge`; the cutover (order 6) is in review. All work lands on an `edge` branch in each repo; `edge` → `main` is the v3 cutover.
 **Date:** 2026-07-28
 **Codebase:** ServUO 57.4, `<servuo>`, net48 / x64, Expansion **EJ**.
 **Companion to** [`PLAN.md`](PLAN.md) (1.0 read/event plane), [`PROTOCOL_2.md`](PROTOCOL_2.md) (2.0 provisioning + world-state streams), [`ADMIN_CONTROLS.md`](ADMIN_CONTROLS.md) (staff write plane), [`INTEGRATION.md`](INTEGRATION.md) (website API).
@@ -15,14 +15,19 @@ Each part is marked off here as it lands on `edge`. §9 carries the same state p
 | 2 | **B/1** — `world.ruleset` (§5) | ✅ **Done** | servuo-plugins [#3](https://gitea.whitlocktech.com/RunicGateway/servuo-plugins/pulls/3), link [#17](https://gitea.whitlocktech.com/RunicGateway/link/pulls/17), website [#111](https://gitea.whitlocktech.com/RunicGateway/website/pulls/111), docs [#66](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/66) |
 | 3 | **C** — spawn atlas (§6) | ✅ **Done** | website [#112](https://gitea.whitlocktech.com/RunicGateway/website/pulls/112) (parsers + CLI + tables) + [#113](https://gitea.whitlocktech.com/RunicGateway/website/pulls/113) (API + pages + admin panel), docs [#67](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/67) + [#68](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/68) |
 | 4 | **B/2** — `points.board` (§7) | ✅ **Done** | servuo-plugins [#4](https://gitea.whitlocktech.com/RunicGateway/servuo-plugins/pulls/4), link [#18](https://gitea.whitlocktech.com/RunicGateway/link/pulls/18), website [#114](https://gitea.whitlocktech.com/RunicGateway/website/pulls/114), docs [#69](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/69) |
-| 5a | **B/3 dependency** — cliloc table (§8.6) | 🟨 In review | website [#115](https://gitea.whitlocktech.com/RunicGateway/website/pulls/115), docs [#70](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/70) |
-| 5b | **B/3** — `vendor.listing` (§8) | ⬜ Not started | — |
-| 6 | **Cutover** — `PROTOCOL_VERSION` 2→3 (§4) | ⬜ Not started | — |
+| 5a | **B/3 dependency** — cliloc table (§8.6) | ✅ **Done** | website [#115](https://gitea.whitlocktech.com/RunicGateway/website/pulls/115), docs [#70](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/70) |
+| 5b | **B/3** — `vendor.listing` (§8) | ✅ **Done** | servuo-plugins [#5](https://gitea.whitlocktech.com/RunicGateway/servuo-plugins/pulls/5), link [#19](https://gitea.whitlocktech.com/RunicGateway/link/pulls/19), website [#116](https://gitea.whitlocktech.com/RunicGateway/website/pulls/116), docs [#71](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/71) |
+| 6 | **Cutover** — `PROTOCOL_VERSION` 2→3 (§4) | 🟨 In review | the bump: link [#20](https://gitea.whitlocktech.com/RunicGateway/link/pulls/20), website [#117](https://gitea.whitlocktech.com/RunicGateway/website/pulls/117), docs [#72](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/72) — then `edge` → `main`: servuo-plugins [#6](https://gitea.whitlocktech.com/RunicGateway/servuo-plugins/pulls/6), link [#21](https://gitea.whitlocktech.com/RunicGateway/link/pulls/21), website [#118](https://gitea.whitlocktech.com/RunicGateway/website/pulls/118), docs [#73](https://gitea.whitlocktech.com/RunicGateway/docs/pulls/73) |
 
 Order 5 split in two once §8.6's cliloc dependency turned out to be a client-format problem rather
 than a parser (see §8.6). 5a is website-only and lands first so the marketplace ships with real item
 names; 5b is the four-repo wire change.
 
+**The `edge` → `main` half of order 6 is held for Android parity** (decided 2026-07-30, see §10): the
+app sees none of the four new features and gates shard nav on session role alone, so merging the
+cutover first would ship a shard whose app client silently disagrees with the web client about what is
+public. The **bump** PRs into `edge` are unaffected and merge normally.
+
 ---
 
 ## 1. Why 3.0
@@ -242,6 +247,39 @@ admin-set `uo_link_config.protocol` column — so it happens **exactly once**, a
   from 2 to 3, so the cutover doesn't require a manual admin edit. `UOLINK_PROTOCOL` still overrides.
 - No feature-negotiation array anywhere — v3 implies all three kinds.
 
+### 4.1 What the bump actually touches
+
+The version lives in five places, and all five move together:
+
+| Where | Change |
+|---|---|
+| `link/sidecar/src/main.rs` | `PROTOCOL_VERSION` 2 → 3 (with the v3 note beside the v2 one), plus the sidecar README's worked example |
+| `website/server/db/schema.sql` | `uo_link_config.protocol` column default 1 → 3, plus the boot migration below |
+| `website/server/src/model/uoLinkConfig/uoLinkConfig.model.js` | `DEFAULT_PROTOCOL` — what a site with nothing saved yet declares |
+| `website/server/src/utils/uoLinkClient.js` + `uoLinkSocket.js` | the `config.protocol || …` fallbacks, so an unset value can never quietly send `1` and 409 with a confusing message |
+| `website/client/.../ShardAdmin.jsx`, `website/.env.example` | the admin form's initial value and the documented env default |
+
+**The migration has to be one-shot, and that is the only subtle part.** `schema.sql` is re-run on
+*every* boot (`utils/db.js::ensureSchema`), and every other statement in its migration block is an
+idempotent `ADD COLUMN IF NOT EXISTS` / `MODIFY`. A bare `UPDATE uo_link_config SET protocol = 3`
+would not be idempotent in the sense that matters: `protocol` is **admin-editable**, so an operator
+who deliberately pins an older sidecar in Admin → Shard would silently be un-pinned on the next
+restart. It is therefore gated on a marker row in `settings`:
+
+```sql
+ALTER TABLE uo_link_config MODIFY COLUMN protocol INT NOT NULL DEFAULT 3;
+UPDATE uo_link_config SET protocol = 3
+  WHERE id = 1 AND protocol < 3
+    AND NOT EXISTS (SELECT 1 FROM settings WHERE `key` = 'uo_link_protocol_3_migrated');
+INSERT IGNORE INTO settings (`key`, value) VALUES ('uo_link_protocol_3_migrated', '1');
+```
+
+The marker is written *after* the `UPDATE`, so the first boot on the new build migrates and every
+later boot is a no-op. A fresh install has no `uo_link_config` row to update and simply gets the
+marker plus the new column default. `protocol < 3` rather than `= 2` so an install that never left
+the old default of `1` is carried across too — it could not have been talking to a v2 sidecar
+anyway.
+
 ---
 
 ## 5. Part B/1 — `world.ruleset` ✅ Done
@@ -639,7 +677,7 @@ if it is renamed back.
 
 ---
 
-## 8. Part B/3 — `vendor.listing`
+## 8. Part B/3 — `vendor.listing` 🟨 In review
 
 ### 8.1 It cannot be an RPC, and this is load-bearing
 
@@ -807,6 +845,75 @@ and text paths converge on identical content.
 driven by `staleAt` (the oldest `shard_vendors.updated_at`). The round-robin sweep means data is
 inherently up to one full cycle old, and the UI must say so.
 
+Shipped with a second page, `routes/public/MarketVendor.jsx` at `/site/market/vendors/:serial` —
+where a search result points. It is the only surface that can render the two states the result list
+cannot: a `truncated` shop (*"showing 250 of 3,104 — this shop holds more than the shard
+publishes"*) and a `location` an admin has gated away, which is a real answer rather than an empty
+coordinate.
+
+### 8.8 What the build changed
+
+Four things the implementation settled differently from §8 as written, all of them found by building
+against the live shard.
+
+**1. `location` is a nested object, not flat `map`/`x`/`y`/`region`.** §8.1's payload sketch had them
+flat, and it would have made `market.location` — a rule Part A pre-wired — **inert**, exactly like
+the `characterName` miss §7.5 records: `projectValue` matches literal JSON keys, so there is no
+`location` key for the rule to match. Flat keys would have needed five rules that could drift apart.
+Nesting makes one rule hide the facet, the coordinates, the region and the house together, on the
+live frame and the stored read model alike, because both now spell it the same way.
+
+The other pre-wired rule, `market.ownerName`, checked out — it is a real key on the frame. Owner is
+written as flat `ownerSerial`/`ownerName` rather than through `BridgeJson.Actor`, which would add
+`acct` and `webId`; same argument `points.board` makes. `ownerSerial` was **added** to the
+configurable fields alongside `ownerName`, because an admin who hides the owner's name and leaves a
+serial every other board resolves back to that name has not hidden anything.
+
+**2. The per-vendor diff signature is the full listing set, not §8.3's `count | Σ(serial ^ price)`.**
+That hash collides on the single most common change a shop makes: two items swapping prices, which
+is what re-pricing looks like. The signature is built over the same buffer the frame is written
+from, in the same order, so a match really does mean an identical frame.
+
+**3. There is no `payload` column on `shard_vendors`.** §8.5 implied the board pattern (whole frame
+in JSON, columns hoisted for display). It does not apply here: the items ARE the searchable rows, so
+they are normalized into `shard_vendor_items` and there is nothing left worth duplicating. The
+sidecar keeps the whole blob, because outage resilience is its job and search is not.
+
+**4. Sweep cost is reported, and a slow tick warns.** The batch cap is a *claim* about per-tick cost,
+and an operator tuning `MarketSweepBatch` was otherwise tuning blind. `[bridge status` now carries
+`lastMs`/`maxMs`, and a tick over 50 ms prints a rate-limited warning naming the knob.
+
+Measured on the live shard (27 vendors × 40 listings, 209k items / 43k mobiles):
+
+| | |
+|---|---|
+| First tick — 25 vendors emitted cold | **15.4 ms** |
+| Second tick — the remaining 2 | **3.4 ms** |
+| Steady state — nothing changed | **0.3 ms** |
+| Website `/market` search over 1,040 listings | 1,040 total, names resolved |
+| Cliloc re-resolution pass over 1,040 rows | **50 ms** |
+
+The diff is what makes the steady state ~free; the batch cap is what bounds the cold case. Note the
+arithmetic the warning exists for: at the default cap of 250 listings, a batch of 25 **full** shops
+is 6,250 items ≈ 95 ms — over budget. Real shops hold tens, which is why 25 is the default, but a
+shard of commodity resellers should lower the batch, and now it will be told to.
+
+Two smaller things worth not rediscovering:
+
+- **`BridgeJson.Escape` takes a NON-NULL string** — it dereferences `value.Length` immediately — and
+  `BridgeJson.Str` writes its own `,"key":` prefix, so neither serves a value inside a hand-built
+  object. Nearly everything this frame writes is legitimately null (an item's plain `Name` is null
+  for almost every item; a vendor in the street has no house), so that is the common path, not an
+  edge case. `BridgeMarket.Text()` is the two-line writer that was missing.
+- **The ServUO console writes in the OS code page**, so an em dash in a `Console.WriteLine` renders
+  as `???` in the log an operator would paste into an issue. Bridge console output is ASCII.
+
+Search-side, one thing the site had to fix rather than inherit: `%` and `_` in a user's query are
+**LIKE** metacharacters, not SQL ones, so parameterization does not neutralize them — a search for
+`%` would otherwise match every listing on the shard. `shardMarket.db.js` escapes them. (The atlas's
+`LIKE` searches predate this and have the same shape over a much smaller table; worth a follow-up,
+not a blocker here.)
+
 ---
 
 ## 9. Sequencing
@@ -817,9 +924,9 @@ inherently up to one full cycle old, and the UI must say so.
 | 2 | **B/1** — `world.ruleset` (§5) | all four | new kind | ✅ Done |
 | 3 | **C** — spawn atlas (§6) | website, docs | none | ✅ Done |
 | 4 | **B/2** — `points.board` (§7) | all four | new kind + `char.profile` field | ✅ Done |
-| 5a | **B/3 dependency** — cliloc table (§8.6) | website, docs | none | 🟨 In review |
-| 5b | **B/3** — `vendor.listing` (§8) | all four | new kinds | ⬜ |
-| 6 | **Cutover** — `PROTOCOL_VERSION` 2→3, `edge` → `main` | all four | the bump | ⬜ |
+| 5a | **B/3 dependency** — cliloc table (§8.6) | website, docs | none | ✅ Done |
+| 5b | **B/3** — `vendor.listing` (§8) | all four | new kinds | ✅ Done |
+| 6 | **Cutover** — `PROTOCOL_VERSION` 2→3, `edge` → `main` | all four | the bump | 🟨 In review — `edge` → `main` held for Android parity (§10) |
 
 ---
 
@@ -841,8 +948,27 @@ inherently up to one full cycle old, and the UI must say so.
 - `npm run swagger` **and** `npm run routes:manifest` on every route-touching PR — both are committed
   artifacts, and `test/routeManifest.test.js` fails on drift.
 
-**Follow-up, not scoped for 3.0:** the Android app consumes the same public/player shard API and will
-need `/public/shard/features` to hide its own nav. Track separately against `android-app/`.
+**Android parity — now scoped, and it gates the cutover (decided 2026-07-30).** This was written as a
+"track separately" follow-up. It was re-examined before the cutover and the gap is wider than nav
+hiding: the app consumes the same public/player shard API but has **no consumer for any of the four new
+features** (`ruleset`, `leaderboards`, `market`, `atlas`), no `points` block on its character sheet, no
+cliloc-resolved item names (§8.6), and — the part that matters for §3 — **it gates shard navigation on
+session role alone**, so an admin who disables a feature or raises its audience leaves the app
+rendering entries that `404`/`403` into a generic error where the web client hides them.
+
+Two things were verified as already correct and are recorded so they are not re-derived: the app's SSE
+request rides the same authenticated OkHttp client as every other call, so an app session resolves to
+the same audience rung as the same account on the web; and every shard DTO in the app is
+nullable-with-defaults, so field projection strips fields without a deserialization failure.
+
+Scoped as **M11 in [`../android/PLAN.md`](../android/PLAN.md) §9**, two PRs: the visibility rules +
+read-model adds ([Android-app #30](https://gitea.whitlocktech.com/RunicGateway/Android-app/pulls/30))
+and the four screens ([#31](https://gitea.whitlocktech.com/RunicGateway/Android-app/pulls/31), stacked
+on it). Both are **built and in review**; the on-device five-rung walk (§11) against a website on the
+cutover branch is the remaining gate. `edge` → `main` is held until both land, so web and app surface
+the same shard on the same day. Neither PR is coupled to the merge order — on a pre-v3 website
+every new route and `/public/shard/features` `404`s and the app falls back to today's behavior — so
+holding the cutover is a schedule decision, not a technical dependency.
 
 ---
 

website/BACKEND_DESIGN.md

@@ -407,6 +407,50 @@ Two values carry non-obvious meanings, both set by the plugin and both documente
   cliloc rather than a literal. Listing therefore orders by `COALESCE(name, system)`, so boards
   awaiting cliloc resolution sort by their own key rather than clumping together under NULL.
 
+### shard_vendors / shard_vendor_items — the player-vendor marketplace (Protocol 3.0)
+
+The shard-wide shop index, fed by `vendor.listing` / `vendor.listing.remove`. One row per player
+vendor and one per priced listing. Full operator detail in [`MARKETPLACE.md`](MARKETPLACE.md); the
+design is `docs/link/v3.md` §8.
+
+| Table | Shape |
+|---|---|
+| `shard_vendors` | `serial` (PK), `shop_name`, `owner_serial`, `owner_name`, `map`/`x`/`y`/`z`, `region`, `house`, `item_count`, `item_total`, `truncated`, `t`, `updated_at`. Indexes on owner, map, region and `updated_at`. |
+| `shard_vendor_items` | `id` (PK), `vendor_serial`, `serial`, `item_id`, `hue`, `amount`, `price`, `name`, `cliloc`, `display_name`, `child`. Indexes on `vendor_serial`, `price`, `item_id`, `display_name`, and `(display_name, price)`. |
+
+**Ingest is per-vendor and authoritative**: the frame is the whole shop, so ingest is
+delete-then-insert of that vendor's listings inside one transaction. All-or-nothing matters
+specifically because the two writes are "the shop" and "what is in it" — a failure between them
+leaves a shop advertising an inventory it no longer has, which is visibly wrong and indistinguishable
+from a genuinely empty shop. No foreign keys, consistent with every other `shard_*` table.
+
+**There is deliberately no `payload` column**, unlike `shard_points_boards` directly above. The
+board's top-N is a fixed-size list read whole, so it lives in JSON; here the items *are* the
+searchable rows, so they are normalized and nothing is left worth duplicating. The sidecar keeps the
+whole blob — outage resilience is its job, search is ours.
+
+Market state, not events: neither kind is in `LOGGED_KINDS`, and this is the strongest case of the
+three v3 kinds. One frame carries up to 250 listings and the sweep re-emits a shop on any price
+change, so logging would turn `shard_events` into a price history nobody reads.
+
+Two columns carry non-obvious meanings:
+
+- **`item_count` vs `item_total`.** `item_count` is what the frame published; `item_total` is what
+  the shop actually holds. They differ when `truncated` — the shard caps listings per frame
+  (`Bridge.MarketMaxListings`, 250 by default), and a commodity reseller with thousands of stacks
+  genuinely exceeds it. Any UI must show both or it presents a partial shop as complete.
+- **`display_name` is denormalized at ingest**, resolved from the item's literal `name` (preferred —
+  a player set it, so it is more specific) else its `cliloc` against `shard_clilocs`. Resolving at
+  query time would put the cliloc table on the hot path and make search-by-name impossible. Because
+  the shard's diff sweep will not re-send an unchanged shop just because the site learned what its
+  items are called, **a cliloc import triggers a bulk re-resolution** of this column (after a boot
+  import and after an admin import; ~50 ms per thousand rows, never throws).
+
+`updated_at` is written explicitly on every upsert rather than left to `ON UPDATE CURRENT_TIMESTAMP`,
+which MariaDB does not fire when every column is written back unchanged. A shop re-published
+identically is still *freshly confirmed*, and without this the staleness banner would age a perfectly
+current shop forever.
+
 ### shard_feature_visibility  — per-feature audience config (Protocol 3.0)
 
 One row per shard feature: `feature` (PK), `enabled`, `audience` (a rung on the ladder in §6.5),
@@ -745,6 +789,9 @@ from the per-route **siteMode** middleware (§5), never from an auth gate.
 | GET | `/shard/ruleset` | the shard's own published ruleset (Protocol 3.0 `world.ruleset`): expansion, which optional systems are on, skill/stat caps, account and house limits, champion scroll rules, the save/restart schedule. Served from `shard_ruleset`, so it renders while the shard is down; live via `world.ruleset` on `/shard/stream`. Behind `requireFeature('ruleset')`. **`null`** means the shard has never published one — a real answer, distinct from a published ruleset. `caps.skill` / `caps.totalSkill` are in **tenths** (1000 = 100.0). |
 | GET | `/shard/points` | every points/loyalty leaderboard the shard publishes (Protocol 3.0 `points.board`) — Queen's Loyalty, Void Pool, the nine city loyalties, Clean Up Britannia, … Served from `shard_points_boards`, so it renders while the shard is down; live via `points.board` on `/shard/stream`. Behind `requireFeature('leaderboards')`, ordered by display name. **`maxPoints: 0` means uncapped** (the common case), and `nameString` is usually `null` with `nameNumber` holding a cliloc — resolve client-side or humanise the `system` key. |
 | GET | `/shard/points/:system` | one board by the shard's `PointsType` name (e.g. `QueensLoyalty`); `:system` must match `/^[A-Za-z][A-Za-z0-9_]{0,47}$/` or **400** before any query runs. **404** = the shard has never published that system, which is distinct from a published board nobody has scored in yet (**200** with an empty `top`). |
+| GET | `/shard/market?q=&minPrice=&maxPrice=&itemId=&map=&region=&sort=&limit=&offset=` | search the player-vendor marketplace (Protocol 3.0 `vendor.listing`). Returns **listings**, not vendors — "who sells X and for how much" is the question, and a vendor-shaped result would make every caller flatten the shops back out. Served from `shard_vendors` + `shard_vendor_items`, so it renders while the shard is down. Behind `requireFeature('market')` **and rate-limited** — the first genuinely expensive public read on the site (a `LIKE` scan plus a `COUNT` over what is typically the largest `shard_*` table, reachable with no session). `sort ∈ {price_asc, price_desc, recent}`. `q` matches the resolved display name **or** the item's literal name, with `%`/`_` escaped: they are `LIKE` metacharacters, not SQL ones, so parameterization alone would let `?q=%` match every listing on the shard. Every response repeats `staleAt` (the oldest vendor row) because the shard sweeps round-robin — a banner that ages with the results it labels, not one fetched once. |
+| GET | `/shard/market/meta` | index size, staleness (`staleAt`/`freshAt`) and which facets and regions actually hold vendors, so a client builds its filters without running a search it will discard. |
+| GET | `/shard/market/vendors/:serial` | one shop and its listings; `:serial` must match `/^0x[0-9A-Fa-f]{1,16}$/` or **400** before any query runs. **404** = a serial the index has never seen, which also covers a vendor since dismissed or hidden — to an anonymous caller those are the same answer, and distinguishing them would leak that a hidden vendor exists. `truncated` (with `total` exceeding `count`) means the shop holds more than the shard publishes per frame. |
 | GET | `/shard/features` | the shard features **this caller** may reach plus the audience rung they resolved to (§6.5), so a client hides nav it can't follow. Reports only what the caller can see — the list itself never discloses a gated feature. Consumed by the SPA header and (pending) the Android nav. |
 | GET | `/atlas/creatures?q=&facet=&limit=&offset=` | the bestiary, most numerous first, with an unpaginated `total`. Static content parsed from the shard's ServUO tree — **not** sidecar-backed, which is why the atlas sits outside `/shard`, and unlike `/shard/*` it **is** site-mode gated. Behind `requireFeature('atlas')`. `?facet=` is matched exactly and never validated against a list (no facet name exists in the code); the filter is an `EXISTS` over the points rather than a JSON path or `JSON_SEARCH` built from caller input, whose `%`/`_` wildcards would make `?facet=%` match everything. |
 | GET | `/atlas/creatures/:slug` | one creature: `places` (the point-in-rect aggregate — "lizardman → Shrines, Isamu-Jima, Yew"), `spawners` (the bounded raw list, with `spawnersTruncated`), `alsoHere`. **`points` is a COUNT and `spawners` is the LIST** — named apart so one key never means a number on one route and an array on another. `minDelay`/`maxDelay` are in **seconds**, normalised at parse time from the source's per-record minutes-or-seconds. 404 = no such creature in this atlas. |
@@ -835,7 +882,11 @@ who"; `activity_log` provides the history feed.
 - **Cookie**: `httpOnly`, `sameSite=Lax`, `path=/`, and **`secure` decided per-request** (`COOKIE_SECURE=auto` → `secure: req.secure`).
 - **Trusted-device MFA.** A second, separate httpOnly cookie (`rg_trust`, default 30d) — opaque, sha256-hashed server-side in `trusted_devices` — lets a browser/app **skip the TOTP step** (never the password) on future logins. It is a server-side, per-row-revocable record (never a JWT claim), so the stateless session JWT is unchanged and trust stays revocable. It only ever gates the **second factor**; it deliberately outlives logout, and is cleared on untrust / password change / password reset / TOTP disable. **Recovery codes** (bcrypt, single-use) are the 2FA-lockout fallback. All admin trusted-device/MFA actions and the self actions (`auth.login.trusted_device`, `account.trusted_device.*`, `account.recovery_code*`, `admin.trusted_device.*`, `admin.user.totp.reset`) are audit-logged. See `docs/website/TRUSTED_DEVICES_MFA.md`. This is the key to dual access: the cookie is `Secure` when reached through Pangolin (HTTPS, `X-Forwarded-Proto: https`) but **not** `Secure` when reached directly over the LAN IP on plain HTTP — so login works in both. `COOKIE_SECURE=true|false` can force it. Requires `trust proxy` (below). `localhost:5173` (Vite) and `localhost:3000` are same-site, so the cookie flows in dev too.
 - **bcrypt** hashing (cost 10+); plaintext passwords never stored, logged, or returned.
-- **Rate limiting** (`express-rate-limit`) on `/auth/login` and `/public/contact`.
+- **Rate limiting** (`express-rate-limit`) on `/auth/login`, `/public/contact`, and — the only limited
+  *read* — `/public/shard/market` and `/public/shard/market/vendors/:serial` (60/min/IP). Every other
+  public read is an indexed lookup of bounded size; the marketplace search is a `LIKE` scan plus a
+  `COUNT` over the largest `shard_*` table, anonymous by default, so it is the one public GET that is
+  worth money to serve.
 - **Validation** (`express-validator`) on all writes; centralized error handler.
 - **helmet** with a Content-Security-Policy tuned for the built React SPA. The policies now live in
   **`server/src/config/csp.js`** (`app.js` only wires them up):

website/MARKETPLACE.md

@@ -0,0 +1,167 @@
+# Marketplace — the player-vendor index
+
+**Status:** On `edge` — servuo-plugins [#5](https://gitea.whitlocktech.com/RunicGateway/servuo-plugins/pulls/5), link [#19](https://gitea.whitlocktech.com/RunicGateway/link/pulls/19), website [#116](https://gitea.whitlocktech.com/RunicGateway/website/pulls/116).
+**Design:** [`docs/link/v3.md` §8](../link/v3.md) — Protocol 3.0 Part B/3.
+**Depends on:** [`CLILOCS.md`](CLILOCS.md) — without a cliloc table, listings render as item ids.
+
+The marketplace is a searchable index of every player vendor on the shard: what
+each shop is selling, for how much, and where it is standing. It is the same set
+the in-game **Vendor Search** gump reads, offered from outside the game — so a
+player can find the vanquishing kryss they want before logging in, and someone
+who does not play at all can see that the economy exists.
+
+Page: `/site/market`, plus `/site/market/vendors/:serial` for one shop.
+
+## Three things the pages must say out loud
+
+Everything below follows from how the data is gathered, and each has a visible
+consequence the UI is required to surface.
+
+**1. The prices are not live.** The shard sweeps vendors **round-robin** — at
+most `Bridge.MarketSweepBatch` shops per tick — so a given shop can be a full
+cycle behind. The page carries a *"prices last refreshed N minutes ago"* banner
+driven by the **oldest** vendor row, not the newest: the one stale shop is the
+one that wastes somebody's trip.
+
+**2. A shop can be truncated.** `Bridge.MarketMaxListings` (250 by default) caps
+how many listings one frame carries. A commodity reseller with thousands of
+stacked resources is a real thing, and an uncapped frame for one is measured in
+megabytes. Over the cap the shop reports `truncated`, and the vendor page says
+*"showing 250 of 3,104 — this shop holds more than the shard publishes"* rather
+than presenting a partial shop as complete.
+
+**3. An item may have no name.** Items on the wire carry a cliloc id, not a name.
+On a shard whose operator has not converted a cliloc table
+([`CLILOCS.md`](CLILOCS.md)) the honest render is the item id — never an invented
+label, which would be indistinguishable from a real one.
+
+## Privacy: the player's own toggle wins
+
+Only vendors whose owner left the in-game **Vendor Search** flag ON are ever sent
+to the site. A player who hides their shop in game is hidden here too, and no
+admin setting overrides that. When they hide one that was already indexed, the
+shard emits `vendor.listing.remove` and the row is deleted — so revoking consent
+takes effect, it does not merely stop refreshing.
+
+Shop name, owner character name and location default to **Everyone**, because the
+stock Vendor Search gump already shows exactly that set to any player in game.
+They remain admin-configurable; see [`SHARD_VISIBILITY.md`](SHARD_VISIBILITY.md).
+Account names and website user ids never cross the wire at all.
+
+## How it is put together
+
+```
+ServUO                          uo-link sidecar               website
+──────                          ───────────────               ───────
+BridgeMarket.cs                 vendors table                 shard_vendors
+  round-robin sweep    ──────►    (whole frame blob)  ──────►  shard_vendor_items
+  per-vendor diff                 GET /market (paged)          + display_name
+  vendor.listing                                               resolved at ingest
+  vendor.listing.remove
+```
+
+**The shard side** walks at most `MarketSweepBatch` vendors per tick from a
+persistent cursor, diffs each against what it last published, and emits a whole
+frame for any shop that moved. Per-tick cost is therefore bounded by the batch,
+not by how many vendors the world holds — full coverage takes
+`ceil(vendors / batch) × MarketSweepSeconds`.
+
+**The sidecar** stores each frame whole and serves `GET /market`, its only paged
+read. It normalizes nothing and defines no audiences: it is a dumb forwarder, and
+search is the website's job.
+
+**The website** splits each frame into a vendor row and its listings, replacing
+that vendor's whole listing set inside one transaction (the frame is
+authoritative for that vendor, never a delta). Item names are resolved against
+the cliloc table **on the way in** and stored denormalized, which is what makes
+search-by-name possible and keeps the cliloc table off the hot path.
+
+## Operating it
+
+Everything is in `Config/Bridge.cfg` on the shard. There is nothing to configure
+on the website.
+
+| Setting | Default | What it does |
+|---|---|---|
+| `MarketEnabled` | `true` | Master switch. Off publishes nothing; the page shows an empty index. |
+| `MarketSweepSeconds` | `60` | Tick interval. |
+| `MarketSweepBatch` | `25` | Vendors inventoried per tick. Clamped 1..500. |
+| `MarketMaxListings` | `250` | Per-shop listing cap, after which `truncated`. Clamped 1..5000. |
+
+**Faster coverage vs. per-tick cost.** Lowering `MarketSweepSeconds` or raising
+`MarketSweepBatch` both refresh the index sooner and both cost more per tick.
+The expensive part is the item walk, which recurses into every container a vendor
+is selling — so a shard of big shops should raise the interval rather than the
+batch.
+
+`[bridge status` reports the sweep, including `lastMs` and `maxMs`:
+
+```
+market(enabled=True sweeps=42 scanned=108 emitted=27 removed=0 skipped=0
+       truncated=0 tracked=27 vendors=27 cursor=2 batch=25 lastMs=0.31 maxMs=15.40)
+```
+
+A tick over **50 ms** prints a rate-limited warning naming the knob:
+
+```
+[Bridge] market sweep took 82.4 ms (budget 50 ms) - lower Bridge.MarketSweepBatch (now 25) if this persists
+```
+
+Measured on a shard with 27 vendors × 40 listings (209k items, 43k mobiles):
+**15.4 ms** for the first cold tick of 25 vendors, **0.3 ms** in steady state —
+the diff is what makes an unchanged world nearly free. Note the arithmetic: 25
+*full* shops at the 250-listing cap is 6,250 items ≈ 95 ms, over budget. Real
+shops hold tens, which is why 25 is the default and why the warning exists.
+
+`[bridge sweepnow` runs one tick immediately; `[bridge reload` re-reads the
+settings above without a restart.
+
+## Names arriving late
+
+Item names come from the cliloc table, and the market sweep will **not** re-send
+an unchanged shop just because the site learned what its items are called. So a
+cliloc import triggers a bulk re-resolution of every stored listing — otherwise
+an operator who configures clilocs after the first sweep would see item ids until
+every shop happened to change on its own. It runs after a boot import and after
+an admin import, takes ~50 ms per thousand listings, and never throws: a failure
+leaves names exactly as they were.
+
+## API
+
+All under `/api/v1/public/shard`, gated by the `market` feature and
+**rate-limited** — these are the first genuinely expensive public reads on the
+site (a `LIKE` scan plus a `COUNT` over what is typically the largest `shard_*`
+table, reachable with no session).
+
+| Route | What |
+|---|---|
+| `GET /market` | Search. Returns **listings**, not vendors — "who sells X and for how much" is the question. `?q=&minPrice=&maxPrice=&itemId=&map=&region=&sort=&limit=&offset=`, `sort ∈ {price_asc, price_desc, recent}`. |
+| `GET /market/meta` | Index size, staleness, and which facets and regions actually hold vendors — so a client builds its filters without running a search it will discard. |
+| `GET /market/vendors/:serial` | One shop and its listings. **404** for a serial the index has never seen, which also covers a vendor since dismissed or hidden — to an anonymous caller those are the same answer. |
+
+`q` matches the resolved display name **or** the item's own literal name, because
+an item with a player-set name (most of what is worth searching for on a
+player-run shard) may carry a generic cliloc. `%` and `_` in a query are escaped:
+they are `LIKE` metacharacters, not SQL ones, so parameterization alone would let
+a search for `%` match every listing on the shard.
+
+Full schemas are in the OpenAPI spec (`ShardMarketPage`, `ShardMarketVendor`,
+`ShardMarketMeta`, `ShardMarketListing`, `ShardMarketLocation`).
+
+## Tables
+
+`shard_vendors` (one row per shop) and `shard_vendor_items` (one row per priced
+listing). Both are ingest-owned; nothing else writes to them. No foreign keys,
+in keeping with every other `shard_*` table — the ingest transaction is what
+keeps them consistent, and an FK would turn a malformed frame into a failed write
+rather than a dropped row.
+
+There is deliberately **no `payload` column** on `shard_vendors`, unlike the
+points board next door. The board's top-N is a fixed-size list read whole, so it
+lives in JSON; here the items *are* the searchable rows, so they are normalized
+and there is nothing left worth duplicating. The sidecar keeps the whole blob,
+because outage resilience is its job.
+
+`shard_vendor_items.display_name` is denormalized and indexed (alone, and
+composite with `price` for "cheapest matching X"). See "Names arriving late"
+above for how it is kept current.

website/SHARD_VISIBILITY.md

@@ -60,12 +60,32 @@ board while holding back one column. See the table in §3.
 | **Shard rules** | Skill/stat caps, house limits, vet rewards, the ruleset | Everyone | Connect address → Everyone |
 | **Spawn atlas** | Bestiary and spawn locations (static content) | Everyone | — |
 | **Leaderboards** | Point and loyalty standings | Everyone | Character names → Everyone |
-| **Marketplace** | The shard-wide player-vendor index | Everyone, **live updates off** | Vendor owner name → Everyone · Location → Everyone |
+| **Marketplace** | The shard-wide player-vendor index | Everyone, **live updates off** | Vendor owner name → Everyone · Vendor owner character id → Everyone · In-game location → Everyone |
 
 **Why the marketplace ships with live updates off.** A live feed of every vendor's full inventory
 would be the single largest thing the site sends. No page needs it — the marketplace is a search over
 stored data with a “prices last refreshed N minutes ago” stamp. Turn it on only if you want it.
 
+**Why the marketplace's fields default to Everyone.** A vendor's shop name, its owner's character
+name and where it is standing are *already* visible to every player in game: the stock Vendor Search
+gump surfaces exactly that set to anyone who opens it. Publishing them on the site is not a new
+disclosure. They stay configurable because a shard may still prefer to keep its economy behind a
+login — and because "already public in game" is a judgement about your shard, not ours.
+
+**Location is one setting covering four things.** Hiding it removes the facet, the coordinates, the
+region *and* the house name together. That is deliberate: those are four ways of saying the same
+thing, and a setting that hid the coordinates while publishing the house name would not have hidden
+anything.
+
+**Hiding the owner name also hides the owner character id.** They are separate settings so you can
+be explicit, but leaving the id published while hiding the name achieves nothing — the leaderboards
+and guild boards resolve that same id back to a character name. Set both.
+
+**What hiding a vendor cannot do.** Only vendors whose owner left the in-game *Vendor Search* flag ON
+are ever sent to the site, so a player who hides their shop in game is hidden here too — and no
+setting on this page can override that. It works the other way as well: these settings control who
+sees the index, not whether players can find each other's shops in game.
+
 **Why house owner/price default to Staff.** The public Houses page has always been a "where are the
 falling houses" board — location only. Owner and price are the staff view. That split is preserved.