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/hooks/use-project-settings-view.ts

@@ -1,6 +1,12 @@
 import { useState, useCallback } from 'react';
 
-export type ProjectSettingsViewId = 'identity' | 'theme' | 'worktrees' | 'claude' | 'danger';
+export type ProjectSettingsViewId =
+  | 'identity'
+  | 'theme'
+  | 'worktrees'
+  | 'testing'
+  | 'claude'
+  | 'danger';
 
 interface UseProjectSettingsViewOptions {
   initialView?: ProjectSettingsViewId;