refactor: update file-graph package structure and integrate with game session management

packages/file-graph/tsconfig.cjs.json

@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "outDir": "./dist/cjs",
+    "declarationDir": "./dist/types"
+  }
+}