fix: correct JSON syntax error in root package.json

Remove trailing comma after "typescript" dependency that was causing JSON parse errors. This fix is critical for npm install to work properly.

Author: POWDER-RANGER

package.json

@@ -41,8 +41,8 @@
     "@types/node": "^20.19.26",
     "concurrently": "^8.2.2",
     "eslint": "^8.57.0",
-    "typescript": "^5.9.3"
-    "prettier": "^3.7.4",
+    "typescript": "^5.9.3",
+    "prettier": "^3.7.4"
   },
   "engines": {
     "node": ">=18.0.0",