chore(deps): upgrade to TypeScript 6, Vite 8, and @vitejs/plugin-react 6

- TypeScript 5.9 → 6.0: add types: ["node"] to base tsconfig, remove
  deprecated baseUrl where unused, add ignoreDeprecations for docs app,
  fix node_modules/ prefix imports with proper package exports
- Vite 7 → 8 + @vitejs/plugin-react 5 → 6: add vite as direct dep
- Add CSS module type declarations for TS6 compatibility
- Update renovate test for pnpm v11 allowBuilds migration

packages/widgets/package.json

@@ -17,6 +17,8 @@
     "./custom-api/component": "./src/custom-api/component.tsx",
     "./custom-api/extract-display-data": "./src/custom-api/extract-display-data.ts",
     "./errors": "./src/errors/component.tsx",
+    "./errors/classes": "./src/errors/index.ts",
+    "./widget-integration-select": "./src/widget-integration-select.tsx",
     "./modals": "./src/modals/index.ts",
     "./prefetch": "./src/prefetch.ts"
   },