feat(houses): tier house visibility — public IDOC-only, staff full, player own

Per request, split the single public house registry into three role-scoped views:

- Public /site/houses → only houses in DANGER (IDOC), by LOCATION (region + map/
  coords). No owner, price, co-owners or decay detail. Renamed "Houses in danger";
  kept live via the public house.decay feed. The full-registry deltas
  (house.update / house.remove — which carry owner/price) are REMOVED from the
  public SSE allowlist so they never reach the public channel.
- Staff full registry → new /admin/houses (admin + moderator, RoleGate + MOD_PATHS)
  backed by GET /admin/shard/houses (modAccess), with owner/price/co-owners/decay
  and search, kept live on the admin SSE channel.
- Player portal → "My houses" home-status section (own houses only, with decay/
  IDOC status) via GET /player/shard/houses, scoped to the caller's linked accounts.

Server tests green, client build clean, swagger regenerated.

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

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

@@ -148,6 +148,20 @@ async function getSales(req, res) {
   }
 }
 
+// GET /player/shard/houses — the caller's OWN houses (home status), scoped to
+// their linked accounts. A player sees their own decay/IDOC standing; never
+// anyone else's. Full detail is fine here — it's their property.
+async function getHouses(req, res) {
+  try {
+    const links = await shardLinks.listForUser(req.user.id)
+    const accounts = links.map((l) => l.account)
+    return res.json(await shardState.listHousesForAccounts(accounts))
+  } catch (err) {
+    log.error('player.shard.getHouses', err)
+    return res.status(500).json({ message: 'Internal Server Error' })
+  }
+}
+
 // Map a failed uoLinkClient.createAccount result to a user-facing HTTP response.
 // The password is never echoed anywhere; only the mapped reason is returned.
 function mapCreateAccountError(res, result) {
@@ -202,4 +216,4 @@ async function createGameAccount(req, res) {
   }
 }
 
-module.exports = { link, listAccounts, roster, vendors, getChar, getSales, createGameAccount }
+module.exports = { link, listAccounts, roster, vendors, getChar, getSales, getHouses, createGameAccount }