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/hooks/index.ts

@@ -166,3 +166,13 @@ export type {
   UseRulesOptions,
   UseRulesReturn,
 } from './useCli';
+
+// ========== CLI Execution ==========
+export {
+  useCliExecutionDetail,
+  cliExecutionKeys,
+} from './useCliExecution';
+export type {
+  UseCliExecutionOptions,
+  UseCliExecutionReturn,
+} from './useCliExecution';