feat(tests): implement test runner functionality with API integration

- Added Test Runner Service to manage test execution processes for worktrees.
- Introduced endpoints for starting and stopping tests, and retrieving test logs.
- Created UI components for displaying test logs and managing test sessions.
- Integrated test runner events for real-time updates in the UI.
- Updated project settings to include configurable test commands.

This enhancement allows users to run tests directly from the UI, view logs in real-time, and manage test sessions effectively.

apps/ui/src/components/views/project-settings-view/index.ts

@@ -2,5 +2,6 @@ export { ProjectSettingsView } from './project-settings-view';
 export { ProjectIdentitySection } from './project-identity-section';
 export { ProjectThemeSection } from './project-theme-section';
 export { WorktreePreferencesSection } from './worktree-preferences-section';
+export { TestingSection } from './testing-section';
 export { useProjectSettingsView, type ProjectSettingsViewId } from './hooks';
 export { ProjectSettingsNavigation } from './components/project-settings-navigation';