fix: remove Phaser typeRoots/types from tsconfig for CI compatibility

The Phaser types are resolved through the module import system, not
through TypeScript's typeRoots. The explicit types: ["Phaser"] config
caused build failures in CI where the type resolution path differs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jdnichollsc

tsconfig.json

@@ -16,14 +16,7 @@
     "noUnusedParameters": true,
     "jsx": "react",
     "jsxFactory": "h",
-    "skipLibCheck": true,
-    "typeRoots": [
-      "./node_modules/@types",
-      "./node_modules/phaser/types"
-    ],
-    "types": [
-      "Phaser"
-    ]
+    "skipLibCheck": true
   },
   "include": [
     "src",