feat: initial full-stack nyaa-crawler implementation

- Node.js + TypeScript + Express backend using built-in node:sqlite
- React + Vite frontend with dark-themed UI
- Nyaa.si RSS polling via fast-xml-parser
- Watch list with show/episode CRUD and status tracking
- Auto-download scheduler with node-cron (configurable interval)
- .torrent file downloader with batch-release filtering
- Settings page for poll interval and quality defaults
- Dockerfile and docker-compose for Unraid deployment
- SQLite DB with migrations (shows, episodes, settings tables)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tsconfig.server.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "CommonJS",
+    "moduleResolution": "node",
+    "outDir": "dist/server",
+    "rootDir": "src/server",
+    "strict": true,
+    "skipLibCheck": true,
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true
+  },
+  "include": ["src/server"]
+}