Add API error monitoring tests and error context snapshots for various browsers

- Created error context snapshots for Firefox, WebKit, and Chromium to capture UI state during API error monitoring.
- Implemented e2e tests for API error detection, including console errors, failed API requests, and proxy errors.
- Added functionality to ignore specific API patterns in monitoring assertions.
- Ensured tests validate the monitoring system's ability to detect and report errors effectively.

ccw/frontend/src/locales/en/cli-manager.json

@@ -123,5 +123,11 @@
       "title": "No Rules Found",
       "message": "Add a rule to enforce code quality standards."
     }
+  },
+  "executionDetails": "Execution Details",
+  "tabs": {
+    "prompt": "Prompt",
+    "output": "Output",
+    "details": "Details"
   }
 }