feat: Add Docker containerization, production serving, and Gitea CI/CD workflow.

src/package.json

@@ -8,7 +8,7 @@
     "server": "tsx watch server/index.ts",
     "client": "vite",
     "build": "tsc && vite build",
-    "start": "node server/dist/index.js"
+    "start": "NODE_ENV=production tsx server/index.ts"
   },
   "dependencies": {
     "express": "^4.21.2",
@@ -16,7 +16,8 @@
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "socket.io": "^4.8.1",
-    "socket.io-client": "^4.8.1"
+    "socket.io-client": "^4.8.1",
+    "tsx": "^4.19.2"
   },
   "devDependencies": {
     "@types/express": "^4.17.21",
@@ -28,8 +29,7 @@
     "concurrently": "^9.1.0",
     "postcss": "^8.4.49",
     "tailwindcss": "^3.4.16",
-    "tsx": "^4.19.2",
     "typescript": "^5.7.2",
     "vite": "^6.0.3"
   }
-}
+}