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/swagger/swagger-output.json

@@ -7091,6 +7091,63 @@
         ]
       }
     },
+    "/api/v1/admin/users/{id}/shard/standing": {
+      "get": {
+        "tags": [
+          "Admin · Users"
+        ],
+        "summary": "A user’s shard standing — governorships held and guilds led (admin only)",
+        "description": "",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "integer"
+            },
+            "description": "User id."
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Standing { governorOf, guildsLed }",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "additionalProperties": true
+                }
+              }
+            }
+          },
+          "400": {
+            "description": "Bad Request"
+          },
+          "404": {
+            "description": "Not found",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/Error"
+                }
+              }
+            }
+          },
+          "500": {
+            "description": "Internal Server Error"
+          }
+        },
+        "security": [
+          {
+            "cookieAuth": []
+          },
+          {
+            "bearerAuth": []
+          }
+        ]
+      }
+    },
     "/api/v1/admin/uo-link/config": {
       "get": {
         "tags": [