Initial commit: Gaming Hub foundation

Plugin-based Discord bot framework with web frontend:
- Core: Discord.js client, SSE broadcast, JSON persistence
- Plugin system: lifecycle hooks (init, onReady, routes, snapshot, destroy)
- Web: React 19 + Vite 6 + TypeScript, tab-based navigation
- Docker: multi-stage build (Node 24, static ffmpeg, yt-dlp)
- GitLab CI: Kaniko with LAN registry caching

Ready for plugin development.

web/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "gaming-hub-web",
+  "version": "1.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
+  },
+  "devDependencies": {
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@vitejs/plugin-react": "^4.3.4",
+    "typescript": "^5.7.0",
+    "vite": "^6.0.0"
+  }
+}