feat(moderation): appeals (6c) + Discord reversal on approve (6d)

Players whose linked Discord identity was banned or muted can now submit
an appeal from the portal and track it; staff get a queue in the admin
moderation section to claim and resolve (approve/deny) appeals. Approving
a ban/mute appeal best-effort asks the Discord bot to reverse the action
(unban / clear timeout) via the internal API and posts a mod-log embed; a
down bot never fails the resolution (reversal_status is recorded).

- Schema: new server-owned `appeals` table (no cross-owner FK to
  mod_actions; existence validated in app code).
- Server: model/appeals/* + player appeals controller (submit/mine/
  eligible/withdraw) and admin queue handlers (list/claim/resolve/
  per-user) under the existing admin+moderator gate; one-active-appeal
  enforced app-side; eligibility keyed on the caller's linked Discord id.
- 6d: bot POST /internal/mod-reverse (+ modLog.postReversal) and
  server botInternalClient.reverseModAction, wired into resolve().
- Client: admin Appeals queue + resolve modal, ModerationUser appeals
  tab, player Appeals page (submit/withdraw), nav + routes + api methods.
- Docs: swagger annotations + component schemas, regenerated output.
- Tests: appeals controller + pure suites (server npm test 224 green).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XmHdsbnLzDMAVQkAoTQSBe

client/src/App.jsx

@@ -51,6 +51,7 @@ import HousesAdmin from './routes/admin/views/HousesAdmin.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'
+import Appeals from './routes/admin/views/Appeals.jsx'
 
 // Player portal
 import PlayerLogin from './routes/player/PlayerLogin.jsx'
@@ -60,6 +61,7 @@ import PlayerPortalLayout from './routes/player/PlayerPortalLayout.jsx'
 import PlayerCharacters from './routes/player/PlayerCharacters.jsx'
 import PlayerCharacter from './routes/player/PlayerCharacter.jsx'
 import PlayerAccount from './routes/player/PlayerAccount.jsx'
+import PlayerAppeals from './routes/player/PlayerAppeals.jsx'
 
 export default function App() {
   return (
@@ -132,6 +134,7 @@ export default function App() {
             >
               <Route index element={<Moderation />} />
               <Route path="user/:discordId" element={<ModerationUser />} />
+              <Route path="appeals" element={<Appeals />} />
             </Route>
             <Route path="activity" element={<ActivityAdmin />} />
             <Route path="bot-activity" element={<BotActivityAdmin />} />
@@ -177,6 +180,7 @@ export default function App() {
             <Route path="/player" element={<PlayerCharacters />} />
             <Route path="/player/char/:serial" element={<PlayerCharacter />} />
             <Route path="/account" element={<PlayerAccount />} />
+            <Route path="/account/appeals" element={<PlayerAppeals />} />
           </Route>
 
           <Route path="*" element={<Navigate to="/" replace />} />