fix: use pnpm overrides for React 19 instead of individual package edits

- Add React 19.0.0 and React DOM 19.0.0 to pnpm overrides in root package.json
- Revert individual package.json React version changes
- This ensures all packages use React 19.0.0 consistently via global override
- Cleaner approach than editing each package individually

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

Co-Authored-By: Claude <[email protected]>

Author: ScriptedAlchemy

package.json

@@ -71,7 +71,9 @@
       }
     },
     "overrides": {
-      "@changesets/assemble-release-plan": "workspace:*"
+      "@changesets/assemble-release-plan": "workspace:*",
+      "react": "19.0.0",
+      "react-dom": "19.0.0"
     }
   },
   "dependencies": {

packages/chrome-devtools/package.json

@@ -59,8 +59,8 @@
     "@module-federation/sdk": "workspace:*",
     "ahooks": "^3.7.10",
     "dagre": "^0.8.5",
-    "react": "~19.0.0",
-    "react-dom": "~19.0.0",
+    "react": "~18.3.1",
+    "react-dom": "~18.3.1",
     "reactflow": "11.11.4"
   },
   "devDependencies": {

packages/data-prefetch/package.json

@@ -83,8 +83,8 @@
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
     "minimist": "^1.2.8",
-    "react": "^19.0.0",
-    "react-dom": "^19.0.0",
+    "react": "18.3.1",
+    "react-dom": "18.3.1",
     "react-router": "^6.21.3",
     "react-test-renderer": "^18.2.0",
     "ts-jest": "29.0.1",