feat(shard): Protocol 2.0 cross-links — titles, guild, governor, houses

Phase 3: surface the new board data on existing character/user pages.

- Character sheet: render the char.profile titles block (fame/karma + skill +
  selected reward title; numeric clilocs skipped since the site has no cliloc
  table yet), plus "Guildmaster" and "Governor of <city>" chips.
- Char profile enrichment (player/admin /shard/char/:serial, one shared path):
  attach guild + governorOf from our own boards. Guild is LEADERSHIP-ONLY — it's
  verifiable from current board state, whereas guessing membership from stale
  guild.join events risks showing a wrong guild, so we return null instead.
- Admin user detail (/admin/users/:id): new "Standing" section (governorships
  held + guilds led) via GET /users/:id/shard/standing; Houses rows now show the
  registry fields (decay level, placement price, co-owner/friend counts) already
  returned by listHousesForAccounts.

Server 179/179, client build clean, swagger regenerated.

Refs .plans/protocol2-integration.md (Phase 3).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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

@@ -83,4 +83,22 @@ async function getOnline(req, res) {
   }
 }
 
-module.exports = { getUser, listAccounts, getSales, getHouses, getOnline }
+// GET /admin/users/:id/shard/standing — the user's shard "standing" cross-links:
+// city governorships they currently hold and guilds they lead. Both are reliable
+// current-state lookups on the user's linked accounts.
+async function getStanding(req, res) {
+  try {
+    const ctx = await accountsForUser(Number(req.params.id))
+    if (!ctx) return res.status(404).json({ message: 'Not found' })
+    const [governorOf, guildsLed] = await Promise.all([
+      shardState.listGovernorshipsForAccounts(ctx.accounts),
+      shardState.listGuildsLedForAccounts(ctx.accounts),
+    ])
+    return res.json({ governorOf, guildsLed })
+  } catch (err) {
+    log.error('getStanding', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
+module.exports = { getUser, listAccounts, getSales, getHouses, getOnline, getStanding }