feat(rust): Dangerous Treasures — feed, map, Treasure Hunter, Start a Dangerous Treasures event (PLAN_REDESIGNS §14.3.4)

Stage 5 of the §14.3 integration plan, on protocol 14 (docs
rust-link/PROTOCOL.md §20.8).

- dt.started and dt.won are public kinds, dt.ended a staff kind. The new
  dangerousTreasures.js reads each row per viewer: grid and invaderCount for
  everyone, the winner's name for the presence audience (D376), the position,
  the step's key, the winner's Steam id and the invaders for staff.
- Feed lines in the World events filter: "A Dangerous Treasures event has
  started · K12", "Alice won the treasure · K12 · 3 players fought for it".
- Triggers rust.dt.started (with byEvent) and rust.dt.won, public, cooldown
  subject the server, names only.
- eventDangerousTreasures.js: rust.dt.start, "Start a Dangerous Treasures
  event" (risk change, reversible none, budget rust.dt.events), server and
  difficulty. Refused at verify where the server said DT is not loaded or
  console.plugins is false (Rust-Plugins#34). dt-not-ready answers "Dangerous
  Treasures is not ready yet" with retryAfterMs 600000 (D365, D371);
  dt-no-spot retries on core's delay; DT's own refusals are permanent.
- Treasure Hunter (D375): treasuresWon -> treasures_won, the title category
  treasureswon, and a sortable Treasures column shown where the server
  reports DT or a row counts one.
- The map draws a running chest on the world layer; the server settings'
  plugin line names DT and whether a step can start one, from the
  integrations read's new `console`.
- coreApi ^1.15.0, ci/core-ref.json pinned to website main at #215's merge.
  ci/bundle.json ships the two new files; swagger fragment and engagement
  manifest regenerated; README lists DT.

Server 627/627 (16 new in test/dangerousTreasures.test.js) and every check;
client 92/92, build and externals. Booted against the pinned core: 45
triggers, 13 actions, 11 budgets, 21 option sources; 89 routes unchanged.

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

server/swagger/doc.js

@@ -270,8 +270,19 @@ module.exports = {
                 description: 'Protocol 14 (PLAN_REDESIGNS §14.3.3): where loaded, its PvP zones reach the feed and the map’s pvp layer.',
                 properties: { loaded: { type: 'boolean', example: true }, version: { type: 'string', example: '5.2.0' } },
               },
+              dangerousTreasures: {
+                type: 'object',
+                description: 'Protocol 14 (PLAN_REDESIGNS §14.3.4): where loaded, its treasure events reach the feed, the map and Treasure Hunter, and a step may start one (where `console.plugins` is true).',
+                properties: { loaded: { type: 'boolean', example: true }, version: { type: 'string', example: '3.0.0' } },
+              },
             },
           },
+          console: {
+            type: 'object',
+            nullable: true,
+            description: 'Protocol 14 (D363): what the plugin’s console probe found at its load. Null from an older plugin, or when the game could not be asked.',
+            properties: { plugins: { type: 'boolean', description: 'Whether another plugin’s console command runs from code here.', example: true } },
+          },
         },
       },
       RustVoice: {