Fix relay server for cloud-node-container deployment

- Add postinstall script to build TypeScript automatically
- Move typescript to dependencies (needed during npm install)
- Update main and start to point to dist/index.js

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

macropad-relay/package.json

@@ -2,11 +2,12 @@
   "name": "macropad-relay",
   "version": "1.0.0",
   "description": "Relay server for MacroPad remote access",
-  "main": "index.js",
+  "main": "dist/index.js",
   "scripts": {
+    "postinstall": "npm run build",
+    "build": "tsc",
+    "start": "node dist/index.js",
     "dev": "nodemon --exec ts-node src/index.ts",
-    "build": "tsc && cp -r public dist/",
-    "start": "node index.js",
     "clean": "rm -rf dist"
   },
   "keywords": ["macropad", "relay", "websocket", "proxy"],
@@ -19,6 +20,7 @@
     "express": "^4.18.2",
     "express-rate-limit": "^7.1.5",
     "helmet": "^7.1.0",
+    "typescript": "^5.3.2",
     "uuid": "^9.0.0",
     "winston": "^3.11.0",
     "ws": "^8.14.2"
@@ -30,7 +32,6 @@
     "@types/uuid": "^9.0.6",
     "@types/ws": "^8.5.9",
     "nodemon": "^3.0.2",
-    "ts-node": "^10.9.2",
-    "typescript": "^5.3.2"
+    "ts-node": "^10.9.2"
   }
 }