fix(browser): fix Camofox JS eval endpoint, userId, and package rename (#9774)

- Fix _camofox_eval() endpoint: /tabs/{id}/eval → /tabs/{id}/evaluate
  (correct Camofox REST API path)
- Add required userId field to JS eval request body (all other Camofox
  endpoints already include it)
- Update npm package from @askjo/camoufox-browser ^1.0.0 to
  @askjo/camofox-browser ^1.5.2 (upstream package was renamed)
- Update tools_config.py post-setup to reference new package directory
  and npx command
- Bump Node engine requirement from >=18 to >=20 (required by
  camoufox-js dependency in camofox-browser v1.5.2)
- Regenerate package-lock.json

Fixes issues reported in PRs #9472, #8267, #7208 (stale).

tools/browser_tool.py

@@ -1748,7 +1748,7 @@ def _camofox_eval(expression: str, task_id: Optional[str] = None) -> str:
     try:
         tab_info = _ensure_tab(task_id or "default")
         tab_id = tab_info.get("tab_id") or tab_info.get("id")
-        resp = _post(f"/tabs/{tab_id}/eval", body={"expression": expression})
+        resp = _post(f"/tabs/{tab_id}/evaluate", body={"expression": expression, "userId": tab_info["user_id"]})
 
         # Camofox returns the result in a JSON envelope
         raw_result = resp.get("result") if isinstance(resp, dict) else resp