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>

package.json

@@ -0,0 +1,34 @@
+{
+  "name": "nyaa-crawler",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "concurrently \"npm run dev:server\" \"npm run dev:client\"",
+    "dev:server": "tsx watch src/server/index.ts",
+    "dev:client": "vite",
+    "build": "npm run build:client && npm run build:server",
+    "build:client": "vite build",
+    "build:server": "tsc -p tsconfig.server.json",
+    "start": "node dist/server/index.js",
+    "migrate": "tsx src/server/db/migrate.ts"
+  },
+  "dependencies": {
+    "express": "^4.18.3",
+    "fast-xml-parser": "^4.3.6",
+    "node-cron": "^3.0.3"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.21",
+    "@types/node": "^22.0.0",
+    "@types/node-cron": "^3.0.11",
+    "@types/react": "^18.2.73",
+    "@types/react-dom": "^18.2.22",
+    "@vitejs/plugin-react": "^4.2.1",
+    "concurrently": "^8.2.2",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "tsx": "^4.7.1",
+    "typescript": "^5.4.3",
+    "vite": "^5.2.2"
+  }
+}