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/model/servers/servers.db.js

@@ -275,10 +275,42 @@ async function dtReportFor(serverId) {
   return rows[0] || null
 }
 
+/**
+ * What one server's last status said about Guarded Crate (with NpcSpawn and its
+ * event names) and its console (protocol 14, PLAN_REDESIGNS §14.3.5):
+ * `{ guardedCrate, console }`, as `dtReportFor`'s are. Null for a server with no
+ * state yet.
+ */
+async function gcReportFor(serverId) {
+  const rows = await core.query(
+    `SELECT JSON_EXTRACT(raw, '$.integrations.guardedCrate') AS guardedCrate,
+            JSON_EXTRACT(raw, '$.console') AS console
+       FROM ${STATE}
+      WHERE server_id = ?`,
+    [serverId],
+  )
+  return rows[0] || null
+}
+
+/** `gcReportFor` for every enabled server, with its id and name: the event list a step offers. */
+async function gcReports() {
+  return core.query(
+    `SELECT s.id AS serverId, s.name AS name,
+            JSON_EXTRACT(st.raw, '$.integrations.guardedCrate') AS guardedCrate,
+            JSON_EXTRACT(st.raw, '$.console') AS console
+       FROM ${SERVERS} s
+       JOIN ${STATE} st ON st.server_id = s.id
+      WHERE s.enabled = 1
+      ORDER BY s.sort_order ASC, s.id ASC`,
+  )
+}
+
 module.exports = {
   SERVERS,
   STATE,
   dtReportFor,
+  gcReportFor,
+  gcReports,
   listServers,
   getServer,
   upsertServer,