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.controller.js

@@ -13,6 +13,7 @@ const core = require('../../core')
 
 const clans = require('../../model/clans/clans.model')
 const dangerousTreasures = require('../../dangerousTreasures')
+const guardedCrate = require('../../guardedCrate')
 const economics = require('../../model/economics/economics.model')
 const events = require('../../model/events/events.model')
 const map = require('../../model/map/map.model')
@@ -123,6 +124,8 @@ async function listLeaderboard(req, res) {
     // Treasure Hunter's column (D375): on a server that reports Dangerous
     // Treasures, and on any page whose rows already count a treasure won.
     const dt = dangerousTreasures.reportOf(await serversDb.dtReportFor(req.params.id).catch(() => null))
+    // Warden's column (D375), likewise for Guarded Crate.
+    const gc = guardedCrate.reportOf(await serversDb.gcReportFor(req.params.id).catch(() => null))
     const withBalance = econ.loaded && wipeId ? { startingBalance: econ.startingBalance } : null
 
     const [rows, held] = await Promise.all([
@@ -145,6 +148,7 @@ async function listLeaderboard(req, res) {
       leaderboard: rows.map((row) => ({ ...row, titles: held.get(row.steamId) || [] })),
       economics: withBalance,
       dangerousTreasures: Boolean((dt.dangerousTreasures && dt.dangerousTreasures.loaded) || rows.some((r) => r.treasuresWon > 0)),
+      guardedCrate: Boolean((gc.guardedCrate && gc.guardedCrate.loaded) || rows.some((r) => r.guardedWon > 0)),
     })
   } catch (err) {
     log.error('failed to read the leaderboard', { server: req.params.id, error: err.message })