feat(admin): view a user's shard footprint at /admin/users/:id

Add a "View" action beside Edit in the users table that opens a dedicated,
read-only page showing everything the uo-link shard knows about a user,
scoped to their linked game accounts: character rosters, currently-online
characters, houses (IDOC-first), and recent vendor sales.

Backend (admin-only, under the existing /users adminOnly gate):
- GET /admin/users/:id — single sanitized user (page is deep-linkable)
- GET /admin/users/:id/shard/{accounts,sales,houses,online}
- shardState: listHousesByAccounts / listOnlineByAccounts (+ model shapers)
- Extract salesForAccounts into utils/shardSales; reuse in player getSales
- Live rosters reuse the existing admin-bypass /admin/shard/* endpoints,
  so no new routes for roster/vendors/char

Frontend:
- UserDetail page reusing CharacterStats / GameAccounts / VendorSales
- GameAccounts gains a readOnly prop (drops link form + self-voice copy)
- api.admin.getUser + api.admin.userShard(id) scope; route + layout title

Tests: adminUserShard.test.js (404, account scoping, empty accounts,
salesForAccounts cap/filter). Full server suite 164 pass; client builds.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0114TpmrNW4wNXsHq5CR72jQ

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>