refactor(client): delete the UO client half (phase 3, slice 3)

35 files and 5,332 lines out — twelve public pages, seven admin views, two
player views, eight components, the two `data/` leaves and the three `lib/`
ones, plus the two tests that came with them. §2.7.1's estimate of 51 files /
~3,700 lines was measured differently and is corrected in the docs PR.

The seams core keeps, each smaller than what it replaced:

Nine rows leave the public header and six leave the admin sidebar, and both
lists are now free of `feature` gates and of `IconShard`. `moduleTitle` already
handled a module page's heading, so the six TITLES entries and the
`/admin/characters` branch of `sectionTitle` simply go.

`/player` had `PlayerCharacters` as its index — a UO page — and rather than name
a replacement or invent a landing screen it now resolves to the first row of the
portal nav this viewer can reach (`firstDestinationFor`, beside
`allowedPathsFor` and reading the BASE nav for the same reason: an override is
presentation and where everybody lands is behaviour). With the module installed
that is still Characters, so a player's first screen after signing in does not
change. Deliberately generic and deliberately not in the portal layout — the
admin index is the same question with a hardcoded answer, and if the two
logged-in areas ever become one this is what serves both.

`game_account_signup` goes with the rest of core's UO prose: the mode list, the
derived public flag, the validation and a Site Settings field whose help text
named Bridge.cfg. The row itself is untouched and module-uo reads it through
ctx.settings — the data stays, the semantics move.

KNOWN BREAK, accepted by the org lead: the shipped Android app reads
`gameAccountSignup` off `/public/settings` (PublicDto.kt:80). The field has a
`= false` default so nothing crashes; the app silently stops offering
game-account creation until it reads the module's `/public/shard/features`
instead. Out of scope here, recorded in the Android plan, and it lands well
before this workstream's cutover reaches `main`.

620 server + 161 client tests. Manifest 158 public + 2 internal, unchanged;
routes.guards unchanged. The OpenAPI spec loses exactly one property, and only
because it was hand-written in swagger.js — regeneration alone would have left
the spec documenting a field core no longer returns.

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

client/src/App.jsx

@@ -18,18 +18,6 @@ import Newsletter from './routes/public/Newsletter.jsx'
 import NewsletterIssue from './routes/public/NewsletterIssue.jsx'
 import About from './routes/public/About.jsx'
 import Status from './routes/public/Status.jsx'
-import Shard from './routes/public/Shard.jsx'
-import ShardActivity from './routes/public/ShardActivity.jsx'
-import ChampSpawns from './routes/public/ChampSpawns.jsx'
-import Guilds from './routes/public/Guilds.jsx'
-import Governors from './routes/public/Governors.jsx'
-import Houses from './routes/public/Houses.jsx'
-import Rules from './routes/public/Rules.jsx'
-import Atlas from './routes/public/Atlas.jsx'
-import AtlasCreature from './routes/public/AtlasCreature.jsx'
-import Leaderboards from './routes/public/Leaderboards.jsx'
-import Market from './routes/public/Market.jsx'
-import MarketVendor from './routes/public/MarketVendor.jsx'
 import Wiki from './routes/wiki/Wiki.jsx'
 import WikiArticle from './routes/wiki/WikiArticle.jsx'
 import CmsPage from './routes/public/CmsPage.jsx'
@@ -49,17 +37,10 @@ import SettingsAdmin from './routes/admin/views/SettingsAdmin.jsx'
 import ActivityAdmin from './routes/admin/views/ActivityAdmin.jsx'
 import BotActivityAdmin from './routes/admin/views/BotActivityAdmin.jsx'
 import DiscordBotAdmin from './routes/admin/views/DiscordBotAdmin.jsx'
-import ShardAdmin from './routes/admin/views/ShardAdmin.jsx'
-import ShardVisibility from './routes/admin/views/ShardVisibility.jsx'
-import SpawnAtlasAdmin from './routes/admin/views/SpawnAtlas.jsx'
-import ShardOps from './routes/admin/views/ShardOps.jsx'
-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 InvitesAdmin from './routes/admin/views/InvitesAdmin.jsx'
-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'
@@ -71,9 +52,7 @@ import PlayerRegister from './routes/player/PlayerRegister.jsx'
 import ForgotPassword from './routes/player/ForgotPassword.jsx'
 import ResetPassword from './routes/player/ResetPassword.jsx'
 import AcceptInvite from './routes/player/AcceptInvite.jsx'
-import PlayerPortalLayout from './routes/player/PlayerPortalLayout.jsx'
-import PlayerCharacters from './routes/player/PlayerCharacters.jsx'
-import PlayerCharacter from './routes/player/PlayerCharacter.jsx'
+import PlayerPortalLayout, { PlayerIndex } from './routes/player/PlayerPortalLayout.jsx'
 import PlayerAccount from './routes/player/PlayerAccount.jsx'
 import PlayerAppeals from './routes/player/PlayerAppeals.jsx'
 
@@ -110,18 +89,6 @@ export default function App() {
               <Route path="/site/newsletter/:id" element={<NewsletterIssue />} />
               <Route path="/site/about" element={<About />} />
               <Route path="/site/status" element={<Status />} />
-              <Route path="/site/shard" element={<Shard />} />
-              <Route path="/site/shard/activity" element={<ShardActivity />} />
-              <Route path="/site/champs" element={<ChampSpawns />} />
-              <Route path="/site/guilds" element={<Guilds />} />
-              <Route path="/site/governors" element={<Governors />} />
-              <Route path="/site/houses" element={<Houses />} />
-              <Route path="/site/rules" element={<Rules />} />
-              <Route path="/site/atlas" element={<Atlas />} />
-              <Route path="/site/atlas/:slug" element={<AtlasCreature />} />
-              <Route path="/site/leaderboards" element={<Leaderboards />} />
-              <Route path="/site/market" element={<Market />} />
-              <Route path="/site/market/vendors/:serial" element={<MarketVendor />} />
               <Route path="/wiki" element={<Wiki />} />
               <Route path="/wiki/:slug" element={<WikiArticle />} />
               {/* Installed modules' public pages, namespaced `/<id>/…` — the
@@ -198,27 +165,6 @@ export default function App() {
               <Route path="activity" element={<ActivityAdmin />} />
               <Route path="bot-activity" element={<BotActivityAdmin />} />
               <Route path="discord-bot" element={<DiscordBotAdmin />} />
-              <Route path="shard" element={<ShardAdmin />} />
-              <Route path="shard-visibility" element={<ShardVisibility />} />
-              <Route path="shard-atlas" element={<SpawnAtlasAdmin />} />
-              <Route
-                path="shard-ops"
-                element={
-                  <RoleGate roles={['admin', 'moderator']}>
-                    <ShardOps />
-                  </RoleGate>
-                }
-              />
-              <Route
-                path="houses"
-                element={
-                  <RoleGate roles={['admin', 'moderator']}>
-                    <HousesAdmin />
-                  </RoleGate>
-                }
-              />
-              <Route path="characters" element={<AdminCharacters />} />
-              <Route path="characters/:serial" element={<AdminCharacter />} />
               <Route path="auth-providers" element={<AuthProvidersAdmin />} />
               <Route path="users" element={<UsersAdmin />} />
               <Route path="users/:id" element={<UserDetail />} />
@@ -253,8 +199,11 @@ export default function App() {
                 </RequirePlayer>
               }
             >
-              <Route path="/player" element={<PlayerCharacters />} />
-              <Route path="/player/char/:serial" element={<PlayerCharacter />} />
+              {/* The portal index resolves to the first nav row this viewer can
+                  reach rather than naming a page: `PlayerCharacters` was a UO
+                  page and left with the client half (MODULE_SYSTEM.md §2.7.1).
+                  With the UO module installed that is still Characters. */}
+              <Route path="/player" element={<PlayerIndex />} />
               <Route path="/account" element={<PlayerAccount />} />
               <Route path="/account/appeals" element={<PlayerAppeals />} />
               {/* Installed modules' player-portal pages, at /player/<id>/…. This