chore: update TypeScript to 6.0.1-rc and adjust package dependencies

- Removed duplicate @typescript-eslint/utils dependency in frontend/package.json
- Updated TypeScript version from 5.9.3 to 6.0.1-rc in frontend/package.json and package.json
- Adjusted ResizeObserver mock to use globalThis in tests
- Modified tsconfig.json and tsconfig.node.json to include empty types array
- Cleaned up package-lock.json to reflect TypeScript version change and updated dev dependencies

frontend/package.json

@@ -34,7 +34,6 @@
     "@radix-ui/react-tabs": "^1.1.13",
     "@radix-ui/react-tooltip": "^1.2.8",
     "@tanstack/react-query": "^5.90.21",
-    "@typescript-eslint/utils": "^8.57.0",
     "axios": "^1.13.6",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
@@ -67,6 +66,7 @@
     "@types/react-dom": "^19.2.3",
     "@typescript-eslint/eslint-plugin": "^8.57.0",
     "@typescript-eslint/parser": "^8.57.0",
+    "@typescript-eslint/utils": "^8.57.0",
     "@vitejs/plugin-react": "^5.1.4",
     "@vitest/coverage-istanbul": "^4.0.18",
     "@vitest/coverage-v8": "^4.0.18",
@@ -91,10 +91,13 @@
     "knip": "^5.86.0",
     "postcss": "^8.5.8",
     "tailwindcss": "^4.2.1",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.1-rc",
     "typescript-eslint": "^8.57.0",
     "vite": "^7.3.1",
     "vitest": "^4.0.18",
     "zod-validation-error": "^5.0.0"
+  },
+  "overrides": {
+    "typescript": "$typescript"
   }
 }