build(deps): bump react and @types/react

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) and [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react). These dependencies needed to be updated together.

Updates `react` from 18.3.1 to 19.2.4
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.2.4/packages/react)

Updates `@types/react` from 18.3.27 to 19.2.14
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

---
updated-dependencies:
- dependency-name: react
  dependency-version: 19.2.4
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/react"
  dependency-version: 19.2.14
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

client/package.json

@@ -13,7 +13,7 @@
     "leaflet": "^1.9.4",
     "lucide-react": "^0.575.0",
     "portos-ai-toolkit": "^0.1.0",
-    "react": "^18.3.1",
+    "react": "^19.2.4",
     "react-dom": "^18.3.1",
     "react-hot-toast": "^2.6.0",
     "react-leaflet": "^4.2.1",
@@ -24,7 +24,7 @@
   "devDependencies": {
     "@types/d3": "^7.4.3",
     "@types/leaflet": "^1.9.21",
-    "@types/react": "^18.3.18",
+    "@types/react": "^19.2.14",
     "@types/react-dom": "^18.3.5",
     "@vitejs/plugin-react": "^5.1.4",
     "autoprefixer": "^10.4.20",