feat(rust): Guarded Crate — feed, map, Warden, Place a guarded crate (PLAN_REDESIGNS §14.3.5)

Stage 6 of the §14.3 integration plan, on protocol 14. Spec: docs
rust-link/PROTOCOL.md §20.9.

- gc.started and gc.ended public, gc.failed staff's; guardedCrate.js reads
  each row per viewer (the clearer's name for the presence audience, Steam id,
  position and key for staff, `won` for everyone).
- Triggers rust.gc.started and rust.gc.ended (a crate a player cleared only).
- The step rust.gc.place: an event from rust.options.gc_events and a world
  call's location; refused at verify for Guarded Crate absent, NpcSpawn missing
  (D364), console unavailable, or an unknown event. Kept (D373); the run log's
  success line says so (D380). Budget rust.gc.crates.
- Warden (D375): guarded_won, title category guardedwon, Crates cleared column.
- Map marker, server settings line, swagger, engagement manifest, bundle, README.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY

server/router/public/rust.router.js

@@ -82,10 +82,10 @@ rustRouter.get(
   '/servers/:id/leaderboard',
   // #swagger.tags = ['Public · Rust']
   // #swagger.summary = 'The leaderboard for one Rust server'
-  // #swagger.description = 'Per-wipe when `wipe` is given, all-time otherwise. All-time is the per-wipe rows summed rather than a second set of counters, so a wipe splits a player’s history without ending it. `lastSeen` is withheld below the operator’s presence audience: a gather tally refreshes it every minute a player is on, so it would name who is online. Each row carries `titles`: the chat titles that player holds now, as `[{ text, color }]` in the order the game shows them, and an empty list for a player with none. Titles rank the CURRENT wipe whichever wipe the page asks for, and are set by the operator’s rules. On a server that reports Economics, and only for one wipe, each row also carries `balance` (its last known coin balance, null when none was reported) and the answer carries `economics: { startingBalance }` (PLAN_REDESIGNS §11.2.2); `economics` is null otherwise. `sort=balance` ranks the richest, and only balances above the starting balance are on it (D336). Each row carries `treasuresWon` (Dangerous Treasures chests emptied, Treasure Hunter’s count, PLAN_REDESIGNS §14.3.4), and the answer carries `dangerousTreasures: true` where the server reports Dangerous Treasures or a row already counts one, which is when a page shows that column.'
+  // #swagger.description = 'Per-wipe when `wipe` is given, all-time otherwise. All-time is the per-wipe rows summed rather than a second set of counters, so a wipe splits a player’s history without ending it. `lastSeen` is withheld below the operator’s presence audience: a gather tally refreshes it every minute a player is on, so it would name who is online. Each row carries `titles`: the chat titles that player holds now, as `[{ text, color }]` in the order the game shows them, and an empty list for a player with none. Titles rank the CURRENT wipe whichever wipe the page asks for, and are set by the operator’s rules. On a server that reports Economics, and only for one wipe, each row also carries `balance` (its last known coin balance, null when none was reported) and the answer carries `economics: { startingBalance }` (PLAN_REDESIGNS §11.2.2); `economics` is null otherwise. `sort=balance` ranks the richest, and only balances above the starting balance are on it (D336). Each row carries `treasuresWon` (Dangerous Treasures chests emptied, Treasure Hunter’s count, PLAN_REDESIGNS §14.3.4), and the answer carries `dangerousTreasures: true` where the server reports Dangerous Treasures or a row already counts one, which is when a page shows that column. Likewise `guardedWon` (guarded crates cleared, Warden’s count, PLAN_REDESIGNS §14.3.5) and `guardedCrate: true` where the server reports Guarded Crate or a row already counts one.'
   // #swagger.parameters['id'] = { in: 'path', required: true, description: 'The server’s slug', schema: { type: 'string' } }
   // #swagger.parameters['wipe'] = { in: 'query', required: false, description: 'Restrict to one wipe id', schema: { type: 'string' } }
-  // #swagger.parameters['sort'] = { in: 'query', required: false, description: 'kills, deaths, npcKills, playtime, cratesHacked, dropsLooted, treasuresWon, or balance (one wipe on a server with Economics)', schema: { type: 'string' } }
+  // #swagger.parameters['sort'] = { in: 'query', required: false, description: 'kills, deaths, npcKills, playtime, cratesHacked, dropsLooted, treasuresWon, guardedWon, or balance (one wipe on a server with Economics)', schema: { type: 'string' } }
   // #swagger.parameters['limit'] = { in: 'query', required: false, description: 'Rows to return, capped at 200', schema: { type: 'integer' } }
   /* #swagger.responses[200] = { description: 'The leaderboard' } */
   siteMode,