feat: add board functionality with articles and comments

- Implemented BoardView for creating and displaying articles with comments.
- Added NationAffairsView for managing national policies and financial settings.
- Created ScoutMessageView for editing recruitment messages.
- Introduced database migrations for board_post and board_comment tables.

app/game-api/package.json

@@ -32,6 +32,7 @@
     },
     "dependencies": {
         "@fastify/cors": "^11.2.0",
+        "@fastify/static": "^9.0.0",
         "@sammo-ts/common": "workspace:*",
         "@sammo-ts/infra": "workspace:*",
         "@sammo-ts/logic": "workspace:*",
@@ -40,6 +41,7 @@
         "es-toolkit": "^1.43.0",
         "fastify": "^5.6.2",
         "redis": "^5.10.0",
+        "sharp": "^0.34.4",
         "zod": "^4.3.5"
     }
 }