fix(ui): address PR #644 review comments

Keyboard accessibility:
- Add role="button", tabIndex, onKeyDown, and aria-label to clickable divs
  in project-status-card, recent-activity-feed, and running-agents-panel

Bug fixes:
- Fix handleActivityClick to use projectPath instead of projectId for
  initializeProject and check result before navigating
- Fix error handling in use-multi-project-status to use data.error string
  directly instead of data.error?.message

Improvements:
- Use GitBranch icon instead of Folder for branch display in running-agents-panel
- Add error logging for failed project loads in overview.ts
- Use type import for FeatureLoader in projects/index.ts
- Add data-testid to mobile Overview button in dashboard-view
- Add locale options for consistent time formatting in overview-view

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/server/src/routes/projects/index.ts

@@ -3,7 +3,7 @@
  */
 
 import { Router } from 'express';
-import { FeatureLoader } from '../../services/feature-loader.js';
+import type { FeatureLoader } from '../../services/feature-loader.js';
 import type { AutoModeService } from '../../services/auto-mode-service.js';
 import type { SettingsService } from '../../services/settings-service.js';
 import type { NotificationService } from '../../services/notification-service.js';