client/src/App.jsx

@@ -40,6 +40,7 @@ import AdminCharacters from './routes/admin/views/AdminCharacters.jsx'
 import AdminCharacter from './routes/admin/views/AdminCharacter.jsx'
 import AuthProvidersAdmin from './routes/admin/views/AuthProvidersAdmin.jsx'
 import UsersAdmin from './routes/admin/views/UsersAdmin.jsx'
+import UserDetail from './routes/admin/views/UserDetail.jsx'
 import AccountAdmin from './routes/admin/views/AccountAdmin.jsx'
 import Moderation from './routes/admin/views/Moderation.jsx'
 import ModerationUser from './routes/admin/views/ModerationUser.jsx'
@@ -124,6 +125,7 @@ export default function App() {
             <Route path="characters/:serial" element={<AdminCharacter />} />
             <Route path="auth-providers" element={<AuthProvidersAdmin />} />
             <Route path="users" element={<UsersAdmin />} />
+            <Route path="users/:id" element={<UserDetail />} />
             <Route path="account" element={<AccountAdmin />} />
             <Route path="*" element={<Navigate to="/admin" replace />} />
           </Route>

client/src/api/client.js

@@ -159,9 +159,23 @@ export const api = {
     botActivity: () => req('/admin/bot-activity'),
     unbanIp: (ip) => req('/admin/bot-activity/unban', { method: 'POST', body: { ip } }),
     listUsers: () => req('/admin/users'),
+    getUser: (id) => req(`/admin/users/${id}`),
     createUser: (data) => req('/admin/users', { method: 'POST', body: data }),
     updateUser: (id, data) => req(`/admin/users/${id}`, { method: 'PUT', body: data }),
     deleteUser: (id) => req(`/admin/users/${id}`, { method: 'DELETE' }),
+    // A single user's shard (uo-link) footprint, scoped to their linked accounts.
+    // accounts/sales/houses/online are user-scoped endpoints; roster/vendors/char
+    // reuse the admin-bypass /admin/shard/* endpoints (which already read any
+    // account) so the shared GameAccounts component works unchanged.
+    userShard: (id) => ({
+      accounts: () => req(`/admin/users/${id}/shard/accounts`),
+      roster: (account) => req(`/admin/shard/roster/${encodeURIComponent(account)}`),
+      vendors: (account) => req(`/admin/shard/vendors/${encodeURIComponent(account)}`),
+      char: (serial) => req(`/admin/shard/char/${encodeURIComponent(serial)}`),
+      sales: () => req(`/admin/users/${id}/shard/sales`),
+      houses: () => req(`/admin/users/${id}/shard/houses`),
+      online: () => req(`/admin/users/${id}/shard/online`),
+    }),
 
     // ----- moderation dashboard (admin + moderator) -----
     modSummary: () => req('/admin/moderation/stats/summary'),

client/src/components/GameAccounts.jsx

@@ -5,7 +5,9 @@ import { Loading, ErrorState } from './PageState.jsx'
 // Shared game-account linking + character roster, used by both the player portal
 // (/player) and the staff account page (/admin/account). `scope` is the api
 // object with { link, accounts, roster } (player or admin self-service); `charTo`
-// maps a serial to the route for that character's sheet.
+// maps a serial to the route for that character's sheet. `readOnly` drops the
+// link forms and self-voice copy for the admin case where staff view *another*
+// user's accounts (no `scope.link`) at /admin/users/:id.
 
 function LinkForm({ scope, onLinked, compact }) {
   const [code, setCode] = useState('')
@@ -105,7 +107,7 @@ function AccountRoster({ scope, account, charTo }) {
   )
 }
 
-export default function GameAccounts({ scope, charTo }) {
+export default function GameAccounts({ scope, charTo, readOnly = false }) {
   const [accounts, setAccounts] = useState(null)
   const [error, setError] = useState('')
 
@@ -114,16 +116,26 @@ export default function GameAccounts({ scope, charTo }) {
     try {
       setAccounts(await scope.accounts())
     } catch {
-      setError('Could not load your game accounts.')
+      setError(readOnly ? 'Could not load this user’s game accounts.' : 'Could not load your game accounts.')
     }
-  }, [scope])
+  }, [scope, readOnly])
   useEffect(() => { load() }, [load])
 
   if (error) return <ErrorState message={error} />
   if (!accounts) return <Loading />
 
-  // Not linked yet — prompt to link.
+  // No linked accounts. In read-only (admin viewing another user) this is just an
+  // empty state; otherwise it's the link-your-account prompt.
   if (accounts.length === 0) {
+    if (readOnly) {
+      return (
+        <div className="panel" style={{ padding: 22 }}>
+          <p className="sans dim" style={{ margin: 0, fontSize: '0.88rem' }}>
+            This user has not linked a game account.
+          </p>
+        </div>
+      )
+    }
     return (
       <div className="panel" style={{ padding: 22 }}>
         <div className="field-label" style={{ marginBottom: 8 }}>Link your game account</div>
@@ -147,10 +159,12 @@ export default function GameAccounts({ scope, charTo }) {
           <AccountRoster scope={scope} account={a.account} charTo={charTo} />
         </section>
       ))}
-      <section style={{ borderTop: '1px solid var(--line-soft)', paddingTop: 20 }}>
-        <div className="field-label" style={{ marginBottom: 10 }}>Link another account</div>
-        <LinkForm scope={scope} onLinked={load} compact />
-      </section>
+      {!readOnly && (
+        <section style={{ borderTop: '1px solid var(--line-soft)', paddingTop: 20 }}>
+          <div className="field-label" style={{ marginBottom: 10 }}>Link another account</div>
+          <LinkForm scope={scope} onLinked={load} compact />
+        </section>
+      )}
     </div>
   )
 }

client/src/routes/admin/AdminLayout.jsx

@@ -129,7 +129,9 @@ export default function AdminLayout() {
       ? 'Moderation'
       : location.pathname.startsWith('/admin/characters')
         ? 'My Characters'
-        : 'Admin')
+        : location.pathname.startsWith('/admin/users/')
+          ? 'User'
+          : 'Admin')
   // The hero canvas editor needs room — let it use the full content width.
   const wide = location.pathname === '/admin/hero'
   const modeDot = mode === 'live' ? 'var(--mode-live)' : 'var(--mode-maint)'

client/src/routes/admin/views/UserDetail.jsx

@@ -0,0 +1,152 @@
+import { useMemo } from 'react'
+import { useParams, Link } from 'react-router-dom'
+import { Loading, ErrorState } from '../../../components/PageState.jsx'
+import { useAsync } from '../../../lib/useAsync.js'
+import { dateTime, ago } from '../../../lib/format.js'
+import { api } from '../../../api/client.js'
+import CharacterStats from '../../../components/CharacterStats.jsx'
+import GameAccounts from '../../../components/GameAccounts.jsx'
+import VendorSales from '../../../components/VendorSales.jsx'
+
+// Admin read-only view of one user's shard (uo-link) footprint: linked game
+// accounts + character rosters, currently-online characters, houses (incl.
+// IDOC) and recent vendor sales — everything scoped to that user's accounts.
+// Reached from the Users table's "View" action; Edit stays a separate modal.
+
+const ROLE_BADGE = {
+  admin: 'badge-admin',
+  editor: 'badge-editor',
+  moderator: 'badge-moderator',
+  player: 'badge-player',
+}
+
+function SectionTitle({ children }) {
+  return (
+    <div className="field-label" style={{ marginBottom: 12, marginTop: 4 }}>
+      {children}
+    </div>
+  )
+}
+
+// Currently-online characters on the user's accounts, with where they are. The
+// per-character Online/Offline badge lives in the roster; this adds location.
+function OnlineNow({ scope }) {
+  const { data } = useAsync(() => scope.online(), [scope])
+  if (!data) return null
+  return (
+    <section style={{ borderTop: '1px solid var(--line-soft)', marginTop: 30, paddingTop: 22 }}>
+      <SectionTitle>Online now</SectionTitle>
+      {data.length === 0 ? (
+        <p className="sans dim" style={{ margin: 0, fontSize: '0.86rem' }}>No characters online right now.</p>
+      ) : (
+        <ul style={{ listStyle: 'none', margin: 0, padding: 0, display: 'flex', flexDirection: 'column', gap: 8 }}>
+          {data.map((c) => (
+            <li key={c.serial} className="sans" style={{ display: 'flex', justifyContent: 'space-between', gap: 12, fontSize: '0.9rem', color: 'var(--ink)' }}>
+              <span style={{ display: 'inline-flex', alignItems: 'center', gap: 8, minWidth: 0 }}>
+                <span style={{ width: 8, height: 8, borderRadius: '50%', background: '#7fd0a4', boxShadow: '0 0 6px #7fd0a4', flex: 'none' }} />
+                <span style={{ color: 'var(--head)' }}>{c.name || '(unnamed)'}</span>
+              </span>
+              <span className="dim" style={{ flex: 'none', fontSize: '0.8rem' }}>
+                {c.map != null ? `map ${c.map} · ${c.x}, ${c.y}` : '—'}
+              </span>
+            </li>
+          ))}
+        </ul>
+      )}
+    </section>
+  )
+}
+
+// Houses owned by the user's accounts, IDOC first (flagged).
+function Houses({ scope }) {
+  const { data } = useAsync(() => scope.houses(), [scope])
+  if (!data) return null
+  return (
+    <section style={{ borderTop: '1px solid var(--line-soft)', marginTop: 30, paddingTop: 22 }}>
+      <SectionTitle>Houses</SectionTitle>
+      {data.length === 0 ? (
+        <p className="sans dim" style={{ margin: 0, fontSize: '0.86rem' }}>No houses recorded for this user’s accounts.</p>
+      ) : (
+        <ul style={{ listStyle: 'none', margin: 0, padding: 0, display: 'flex', flexDirection: 'column', gap: 10 }}>
+          {data.map((h) => (
+            <li
+              key={h.serial}
+              style={{ display: 'flex', justifyContent: 'space-between', gap: 12, alignItems: 'baseline', padding: '12px 14px', border: '1px solid var(--line)', borderRadius: 10, background: 'rgba(255,255,255,0.02)' }}
+            >
+              <div style={{ minWidth: 0 }}>
+                <div className="sans" style={{ color: 'var(--head)', fontSize: '0.95rem' }}>
+                  {h.name || 'Unnamed house'}
+                  {h.isIdoc && <span className="badge" style={{ marginLeft: 8, background: '#5b2020', color: '#f0c8c2' }}>IDOC</span>}
+                </div>
+                <div className="sans dim" style={{ fontSize: '0.78rem', marginTop: 2 }}>
+                  {h.region || (h.map != null ? `map ${h.map}` : 'unknown')}
+                  {h.x != null ? ` · ${h.x}, ${h.y}` : ''}
+                  {h.ownerAcct ? ` · ${h.ownerAcct}` : ''}
+                </div>
+              </div>
+              <div className="sans dim" style={{ flex: 'none', fontSize: '0.78rem', textAlign: 'right' }}>
+                {h.stage ? <div style={{ color: h.isIdoc ? '#e0928a' : 'var(--muted)' }}>{h.stage}</div> : null}
+                {h.lastRefreshed ? <div>refreshed {ago(h.lastRefreshed)}</div> : null}
+              </div>
+            </li>
+          ))}
+        </ul>
+      )}
+    </section>
+  )
+}
+
+function ShardSections({ scope }) {
+  return (
+    <>
+      <CharacterStats scope={scope} />
+      <SectionTitle>Linked accounts &amp; characters</SectionTitle>
+      <GameAccounts scope={scope} readOnly charTo={(serial) => `/admin/characters/${serial}`} />
+      <OnlineNow scope={scope} />
+      <Houses scope={scope} />
+      <VendorSales fetchSales={scope.sales} />
+    </>
+  )
+}
+
+export default function UserDetail() {
+  const { id } = useParams()
+  // Memoize so the child components' effects (keyed on `scope`) don't refetch
+  // on every render.
+  const scope = useMemo(() => api.admin.userShard(id), [id])
+  const { loading, error, data: user } = useAsync(() => api.admin.getUser(id), [id])
+
+  if (loading) return <Loading />
+  if (error) return <ErrorState message="Could not load this user." />
+
+  return (
+    <section>
+      <Link to="/admin/users" className="link-accent" style={{ fontSize: '0.85rem' }}>
+        ← Back to users
+      </Link>
+
+      {/* Header */}
+      <div style={{ padding: 22, border: '1px solid var(--line)', borderRadius: 12, background: 'var(--panel-grad)', margin: '12px 0 24px' }}>
+        <div style={{ display: 'flex', alignItems: 'baseline', gap: 12, flexWrap: 'wrap' }}>
+          <span className="display" style={{ fontSize: '1.5rem', color: 'var(--head)' }}>
+            {user.username}
+          </span>
+          <span className={`badge ${ROLE_BADGE[user.role] || 'badge-editor'}`}>{user.role}</span>
+          <span
+            className="sans"
+            style={{ fontSize: '0.82rem', color: user.status && user.status !== 'active' ? '#d98b84' : 'var(--muted)' }}
+          >
+            {user.status || 'active'}
+          </span>
+        </div>
+        <div className="sans dim" style={{ display: 'flex', gap: 18, marginTop: 10, flexWrap: 'wrap', fontSize: '0.8rem' }}>
+          {user.email && <span>{user.email}</span>}
+          <span>Last login: {user.last_login_at ? dateTime(user.last_login_at) : 'never'}</span>
+          {user.created_at && <span>Joined: {dateTime(user.created_at)}</span>}
+        </div>
+      </div>
+
+      <ShardSections scope={scope} />
+    </section>
+  )
+}

client/src/routes/admin/views/UsersAdmin.jsx

@@ -1,4 +1,5 @@
 import { useCallback, useState } from 'react'
+import { useNavigate } from 'react-router-dom'
 import { Loading, ErrorState } from '../../../components/PageState.jsx'
 import { useAsync } from '../../../lib/useAsync.js'
 import { dateTime } from '../../../lib/format.js'
@@ -13,6 +14,7 @@ const ROLE_BADGE = {
 }
 
 export default function UsersAdmin() {
+  const navigate = useNavigate()
   const [tick, setTick] = useState(0)
   const reload = useCallback(() => setTick((t) => t + 1), [])
   const { loading, error, data } = useAsync(() => api.admin.listUsers(), [tick])
@@ -64,8 +66,13 @@ export default function UsersAdmin() {
                   </td>
                   <td className="adm-td dim">{u.last_login_at ? dateTime(u.last_login_at) : 'never'}</td>
                   <td className="adm-td" style={{ textAlign: 'right' }}>
-                    <span className="link-accent" onClick={() => setEditing(u)}>
-                      Edit
+                    <span style={{ display: 'inline-flex', gap: 16, justifyContent: 'flex-end' }}>
+                      <span className="link-accent" onClick={() => navigate(`/admin/users/${u.id}`)}>
+                        View
+                      </span>
+                      <span className="link-accent" onClick={() => setEditing(u)}>
+                        Edit
+                      </span>
                     </span>
                   </td>
                 </tr>

server/src/model/shardState/shardState.db.js

@@ -33,6 +33,18 @@ async function countOnline() {
 const listOnline = () =>
   query(`SELECT ${ONLINE_COLS} FROM shard_online ORDER BY name ASC`)
 
+// Online players on any of the given game accounts (admin: a user's linked
+// accounts). Empty list short-circuits so we never emit `IN ()`.
+const listOnlineByAccounts = (accounts) =>
+  accounts.length === 0
+    ? Promise.resolve([])
+    : query(
+        `SELECT ${ONLINE_COLS} FROM shard_online
+          WHERE acct IN (${accounts.map(() => '?').join(', ')})
+          ORDER BY name ASC`,
+        accounts,
+      )
+
 // Staff roles whose online presence is shown on the public Shard page. Players
 // who link an account are NOT surfaced publicly — only staff opt into visibility
 // by virtue of being staff.
@@ -89,6 +101,18 @@ async function upsertHouse(serial, fields) {
 const listIdocHouses = () =>
   query(`SELECT ${HOUSE_COLS} FROM shard_houses WHERE is_idoc = 1 ORDER BY updated_at DESC`)
 
+// Houses owned by any of the given game accounts (admin: a user's linked
+// accounts). IDOC houses first, then newest-refreshed. Empty list short-circuits.
+const listHousesByAccounts = (accounts) =>
+  accounts.length === 0
+    ? Promise.resolve([])
+    : query(
+        `SELECT ${HOUSE_COLS} FROM shard_houses
+          WHERE owner_acct IN (${accounts.map(() => '?').join(', ')})
+          ORDER BY is_idoc DESC, updated_at DESC`,
+        accounts,
+      )
+
 module.exports = {
   upsertOnline,
   removeOnline,
@@ -96,9 +120,11 @@ module.exports = {
   countOnline,
   listOnline,
   listOnlineLinked,
+  listOnlineByAccounts,
   insertEconomy,
   listEconomy,
   latestEconomy,
   upsertHouse,
   listIdocHouses,
+  listHousesByAccounts,
 }

server/src/model/shardState/shardState.model.js

@@ -136,9 +136,8 @@ async function upsertHouse(data) {
   await db.upsertHouse(data.serial, fields)
 }
 
-async function listIdoc() {
-  const rows = await db.listIdocHouses()
-  return rows.map((r) => ({
+function shapeHouse(r) {
+  return {
     serial: r.serial,
     stage: r.stage,
     map: r.map,
@@ -153,7 +152,24 @@ async function listIdoc() {
     lastRefreshed: r.last_refreshed,
     isIdoc: Boolean(r.is_idoc),
     updatedAt: r.updated_at,
-  }))
+  }
+}
+
+async function listIdoc() {
+  const rows = await db.listIdocHouses()
+  return rows.map(shapeHouse)
+}
+
+// Houses owned by the given game accounts (admin: a user's linked accounts).
+async function listHousesForAccounts(accounts) {
+  const rows = await db.listHousesByAccounts(accounts)
+  return rows.map(shapeHouse)
+}
+
+// Online players on the given game accounts (admin: a user's linked accounts).
+async function listOnlineForAccounts(accounts) {
+  const rows = await db.listOnlineByAccounts(accounts)
+  return rows.map(shapeOnline)
 }
 
 module.exports = {
@@ -163,9 +179,11 @@ module.exports = {
   onlineCount,
   listOnline,
   listOnlineLinked,
+  listOnlineForAccounts,
   addEconomySample,
   listEconomy,
   latestEconomy,
   upsertHouse,
   listIdoc,
+  listHousesForAccounts,
 }

server/src/router/v1/admin/admin.routes.js

@@ -12,6 +12,7 @@ const authProviders = require('./authProviders.controller')
 const discordBot = require('./discordBot.controller')
 const emailConfig = require('./emailConfig.controller')
 const uoLink = require('./uoLink.controller')
+const usersShard = require('./usersShard.controller')
 const selfShard = require('../player/shard.controller')
 const moderation = require('./moderation.controller')
 const pagesCtrl = require('./pages.controller')
@@ -1082,6 +1083,72 @@ adminRouter.delete(
   ctrl.deleteUser,
 )
 
+// ── User → shard (uo-link) footprint (admin only) ─────────────────────
+// Backs the /admin/users/:id detail page: a user's linked game accounts and,
+// scoped to those accounts, their vendor sales / houses / online characters.
+// Live character rosters are fetched by the client through /admin/shard/* (which
+// already grants admins a bypass to any account), so no routes for them here.
+adminRouter.get(
+  '/users/:id',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'Get a single user (admin only)'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'The user', content: { "application/json": { schema: { $ref: "#/components/schemas/User" } } } } */
+  /* #swagger.responses[404] = { description: 'Not found', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  validate,
+  usersShard.getUser,
+)
+adminRouter.get(
+  '/users/:id/shard/accounts',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'A user’s linked game accounts (admin only)'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'Linked accounts', content: { "application/json": { schema: { type: "array", items: { $ref: "#/components/schemas/ShardLink" } } } } } */
+  /* #swagger.responses[404] = { description: 'Not found', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  validate,
+  usersShard.listAccounts,
+)
+adminRouter.get(
+  '/users/:id/shard/sales',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'Recent vendor sales on a user’s accounts (admin only)'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'Vendor sales', content: { "application/json": { schema: { type: "array", items: { $ref: "#/components/schemas/ShardVendorSale" } } } } } */
+  /* #swagger.responses[404] = { description: 'Not found', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  validate,
+  usersShard.getSales,
+)
+adminRouter.get(
+  '/users/:id/shard/houses',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'Houses owned by a user’s accounts (admin only)'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'Houses (IDOC first)', content: { "application/json": { schema: { type: "array", items: { type: "object", additionalProperties: true } } } } } */
+  /* #swagger.responses[404] = { description: 'Not found', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  validate,
+  usersShard.getHouses,
+)
+adminRouter.get(
+  '/users/:id/shard/online',
+  // #swagger.tags = ['Admin · Users']
+  // #swagger.summary = 'A user’s characters currently online (admin only)'
+  // #swagger.security = [{ "cookieAuth": [] }, { "bearerAuth": [] }]
+  // #swagger.parameters['id'] = { in: 'path', required: true, schema: { type: 'integer' }, description: 'User id.' }
+  /* #swagger.responses[200] = { description: 'Online characters', content: { "application/json": { schema: { type: "array", items: { type: "object", additionalProperties: true } } } } } */
+  /* #swagger.responses[404] = { description: 'Not found', content: { "application/json": { schema: { $ref: "#/components/schemas/Error" } } } } */
+  param('id').isInt(),
+  validate,
+  usersShard.getOnline,
+)
+
 // ── uo-link sidecar control (admin only) ──────────────────────────────────
 // Connection config (base/ws URL + token + protocol + enabled) and the town
 // crier. The token is write-only (SECURITY note in uoLink.controller.js).

server/src/router/v1/admin/usersShard.controller.js

@@ -0,0 +1,86 @@
+// ── Admin: a single user's shard (uo-link) footprint ──────────────────────────
+//
+// Backs the /admin/users/:id detail page. Every read is scoped to the target
+// user's linked game accounts (from the local shard_account_links mirror): their
+// vendor sales, houses, and currently-online characters. The live character
+// rosters are fetched separately by the client through the existing admin-bypass
+// /admin/shard/* endpoints, so nothing here round-trips the sidecar — these are
+// fast, DB-backed reads. Admin-only (registered under adminOnly in the router).
+
+const users = require('../../../model/users/users.model')
+const shardLinks = require('../../../model/shardLinks/shardLinks.model')
+const shardState = require('../../../model/shardState/shardState.model')
+const { salesForAccounts } = require('../../../utils/shardSales')
+
+const log = require('../../../utils/logger')('admin-user-shard')
+
+// Resolve the target user's linked game accounts, or null if the user id is
+// unknown (so the handler can 404 rather than silently returning an empty set).
+async function accountsForUser(id) {
+  const user = await users.getById(id)
+  if (!user) return null
+  const links = await shardLinks.listForUser(id)
+  return { user, links, accounts: links.map((l) => l.account) }
+}
+
+// GET /admin/users/:id — the sanitized user (so the detail page is refresh-safe).
+async function getUser(req, res) {
+  try {
+    const user = await users.getById(Number(req.params.id))
+    if (!user) return res.status(404).json({ message: 'Not found' })
+    return res.json(user)
+  } catch (err) {
+    log.error('getUser', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
+// GET /admin/users/:id/shard/accounts — the user's linked game accounts.
+async function listAccounts(req, res) {
+  try {
+    const ctx = await accountsForUser(Number(req.params.id))
+    if (!ctx) return res.status(404).json({ message: 'Not found' })
+    return res.json(ctx.links)
+  } catch (err) {
+    log.error('listAccounts', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
+// GET /admin/users/:id/shard/sales — recent vendor sales on the user's accounts.
+async function getSales(req, res) {
+  try {
+    const ctx = await accountsForUser(Number(req.params.id))
+    if (!ctx) return res.status(404).json({ message: 'Not found' })
+    return res.json(await salesForAccounts(ctx.accounts))
+  } catch (err) {
+    log.error('getSales', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
+// GET /admin/users/:id/shard/houses — houses owned by the user's accounts.
+async function getHouses(req, res) {
+  try {
+    const ctx = await accountsForUser(Number(req.params.id))
+    if (!ctx) return res.status(404).json({ message: 'Not found' })
+    return res.json(await shardState.listHousesForAccounts(ctx.accounts))
+  } catch (err) {
+    log.error('getHouses', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
+// GET /admin/users/:id/shard/online — the user's characters currently online.
+async function getOnline(req, res) {
+  try {
+    const ctx = await accountsForUser(Number(req.params.id))
+    if (!ctx) return res.status(404).json({ message: 'Not found' })
+    return res.json(await shardState.listOnlineForAccounts(ctx.accounts))
+  } catch (err) {
+    log.error('getOnline', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
+module.exports = { getUser, listAccounts, getSales, getHouses, getOnline }

server/src/router/v1/player/shard.controller.js

@@ -9,7 +9,7 @@
 
 const uoLinkClient = require('../../../utils/uoLinkClient')
 const shardLinks = require('../../../model/shardLinks/shardLinks.model')
-const shardEvents = require('../../../model/shardEvents/shardEvents.model')
+const { salesForAccounts } = require('../../../utils/shardSales')
 const activity = require('../../../model/activity/activity.model')
 
 const log = require('../../../utils/logger')('player-shard')
@@ -120,21 +120,8 @@ async function getChar(req, res) {
 async function getSales(req, res) {
   try {
     const links = await shardLinks.listForUser(req.user.id)
-    const accounts = new Set(links.map((l) => l.account))
-    if (accounts.size === 0) return res.json([])
-    const events = await shardEvents.list({ kind: 'vendor.sale', limit: 500 })
-    const mine = events
-      .filter((e) => e.payload && accounts.has(e.payload.ownerAcct))
-      .slice(0, 50)
-      .map((e) => ({
-        t: e.t,
-        itemType: e.payload.itemType,
-        amount: e.payload.amount,
-        price: e.payload.price,
-        commission: e.payload.commission,
-        ownerAcct: e.payload.ownerAcct,
-      }))
-    return res.json(mine)
+    const accounts = links.map((l) => l.account)
+    return res.json(await salesForAccounts(accounts))
   } catch (err) {
     log.error('player.shard.getSales', err)
     return res.status(500).json({ message: 'Internal Server Error' })

server/src/utils/shardSales.js

@@ -0,0 +1,26 @@
+// Recent player-vendor sales for a set of game accounts. Shared by the player
+// self endpoint (the caller's linked accounts) and the admin user-detail
+// endpoint (a target user's linked accounts). Reads the site's own ingested
+// event log — no sidecar round-trip — and filters to sales whose owning account
+// is in the set. Newest 50, already newest-first from shardEvents.list.
+
+const shardEvents = require('../model/shardEvents/shardEvents.model')
+
+async function salesForAccounts(accounts) {
+  const set = accounts instanceof Set ? accounts : new Set(accounts)
+  if (set.size === 0) return []
+  const events = await shardEvents.list({ kind: 'vendor.sale', limit: 500 })
+  return events
+    .filter((e) => e.payload && set.has(e.payload.ownerAcct))
+    .slice(0, 50)
+    .map((e) => ({
+      t: e.t,
+      itemType: e.payload.itemType,
+      amount: e.payload.amount,
+      price: e.payload.price,
+      commission: e.payload.commission,
+      ownerAcct: e.payload.ownerAcct,
+    }))
+}
+
+module.exports = { salesForAccounts }

server/test/adminUserShard.test.js

@@ -0,0 +1,153 @@
+// Point the DB at a closed port BEFORE requiring anything that builds the pool,
+// so any stray query fails fast instead of hanging the runner. These tests stub
+// every model method the controller touches, so the DB is never actually hit.
+process.env.DB_HOST = '127.0.0.1'
+process.env.DB_PORT = '59999'
+
+const { test, after, afterEach } = require('node:test')
+const assert = require('node:assert/strict')
+
+const ctrl = require('../src/router/v1/admin/usersShard.controller')
+const users = require('../src/model/users/users.model')
+const shardLinks = require('../src/model/shardLinks/shardLinks.model')
+const shardState = require('../src/model/shardState/shardState.model')
+const shardEvents = require('../src/model/shardEvents/shardEvents.model')
+const { salesForAccounts } = require('../src/utils/shardSales')
+const db = require('../src/utils/db')
+
+after(() => db.close())
+
+function mockRes() {
+  return {
+    statusCode: 200,
+    body: null,
+    status(c) {
+      this.statusCode = c
+      return this
+    },
+    json(b) {
+      this.body = b
+      return this
+    },
+  }
+}
+
+// Save/restore the originals so each test's monkeypatches don't leak.
+const originals = {
+  getById: users.getById,
+  listForUser: shardLinks.listForUser,
+  listHousesForAccounts: shardState.listHousesForAccounts,
+  listOnlineForAccounts: shardState.listOnlineForAccounts,
+  eventsList: shardEvents.list,
+}
+afterEach(() => {
+  users.getById = originals.getById
+  shardLinks.listForUser = originals.listForUser
+  shardState.listHousesForAccounts = originals.listHousesForAccounts
+  shardState.listOnlineForAccounts = originals.listOnlineForAccounts
+  shardEvents.list = originals.eventsList
+})
+
+// ── salesForAccounts util ──────────────────────────────────────────────────
+test('salesForAccounts returns [] for an empty account set without hitting the log', async () => {
+  let called = false
+  shardEvents.list = async () => {
+    called = true
+    return []
+  }
+  assert.deepEqual(await salesForAccounts([]), [])
+  assert.equal(called, false)
+})
+
+test('salesForAccounts keeps only sales owned by the given accounts, newest 50', async () => {
+  const events = []
+  // 60 sales owned by "mine", plus some owned by "other".
+  for (let i = 0; i < 60; i++) {
+    events.push({ t: i, payload: { ownerAcct: 'mine', itemType: 'sword', amount: 1, price: 10, commission: 1 } })
+  }
+  events.push({ t: 999, payload: { ownerAcct: 'other', itemType: 'shield', amount: 1, price: 5 } })
+  shardEvents.list = async () => events
+
+  const rows = await salesForAccounts(['mine'])
+  assert.equal(rows.length, 50) // capped
+  assert.ok(rows.every((r) => r.ownerAcct === 'mine')) // never leaks "other"
+  assert.deepEqual(Object.keys(rows[0]).sort(), ['amount', 'commission', 'itemType', 'ownerAcct', 'price', 't'])
+})
+
+// ── Controller: unknown user → 404 ─────────────────────────────────────────
+for (const handler of ['getUser', 'listAccounts', 'getSales', 'getHouses', 'getOnline']) {
+  test(`${handler} returns 404 when the user does not exist`, async () => {
+    users.getById = async () => null
+    const res = mockRes()
+    await ctrl[handler]({ params: { id: '404' } }, res)
+    assert.equal(res.statusCode, 404)
+  })
+}
+
+// ── Controller: scoping to the user's accounts ─────────────────────────────
+test('listAccounts returns the user’s linked accounts', async () => {
+  users.getById = async () => ({ id: 7, username: 'bob', role: 'player' })
+  shardLinks.listForUser = async (id) => {
+    assert.equal(id, 7)
+    return [{ account: 'acctA' }, { account: 'acctB' }]
+  }
+  const res = mockRes()
+  await ctrl.listAccounts({ params: { id: '7' } }, res)
+  assert.equal(res.statusCode, 200)
+  assert.deepEqual(res.body, [{ account: 'acctA' }, { account: 'acctB' }])
+})
+
+test('getHouses passes exactly the user’s accounts to the model', async () => {
+  users.getById = async () => ({ id: 7 })
+  shardLinks.listForUser = async () => [{ account: 'acctA' }, { account: 'acctB' }]
+  let received = null
+  shardState.listHousesForAccounts = async (accounts) => {
+    received = accounts
+    return [{ serial: '0x1', isIdoc: true }]
+  }
+  const res = mockRes()
+  await ctrl.getHouses({ params: { id: '7' } }, res)
+  assert.deepEqual(received, ['acctA', 'acctB'])
+  assert.deepEqual(res.body, [{ serial: '0x1', isIdoc: true }])
+})
+
+test('getOnline passes exactly the user’s accounts to the model', async () => {
+  users.getById = async () => ({ id: 7 })
+  shardLinks.listForUser = async () => [{ account: 'acctA' }]
+  let received = null
+  shardState.listOnlineForAccounts = async (accounts) => {
+    received = accounts
+    return [{ serial: '0x2', name: 'Zoe' }]
+  }
+  const res = mockRes()
+  await ctrl.getOnline({ params: { id: '7' } }, res)
+  assert.deepEqual(received, ['acctA'])
+  assert.deepEqual(res.body, [{ serial: '0x2', name: 'Zoe' }])
+})
+
+test('a user with no linked accounts yields empty sales/houses/online', async () => {
+  users.getById = async () => ({ id: 7 })
+  shardLinks.listForUser = async () => []
+  shardState.listHousesForAccounts = async (a) => (a.length ? [{}] : [])
+  shardState.listOnlineForAccounts = async (a) => (a.length ? [{}] : [])
+  shardEvents.list = async () => [{ payload: { ownerAcct: 'someoneElse' } }]
+
+  const sales = mockRes()
+  const houses = mockRes()
+  const online = mockRes()
+  await ctrl.getSales({ params: { id: '7' } }, sales)
+  await ctrl.getHouses({ params: { id: '7' } }, houses)
+  await ctrl.getOnline({ params: { id: '7' } }, online)
+
+  assert.deepEqual(sales.body, [])
+  assert.deepEqual(houses.body, [])
+  assert.deepEqual(online.body, [])
+})
+
+test('getUser returns the sanitized user row', async () => {
+  users.getById = async () => ({ id: 7, username: 'bob', role: 'player', status: 'active' })
+  const res = mockRes()
+  await ctrl.getUser({ params: { id: '7' } }, res)
+  assert.equal(res.statusCode, 200)
+  assert.equal(res.body.username, 'bob')
+})