Add complete Browser Hand UI system for browser automation:
Components:
- BrowserHandCard: Main card with status display and screenshot preview
- TaskTemplateModal: Template selection and parameter configuration
- ScreenshotPreview: Screenshot display with fullscreen capability
Templates:
- Basic operations: navigate, screenshot, form fill, click, execute JS
- Scraping: text, list, images, links, tables
- Automation: login+action, multi-page, monitoring, pagination
Features:
- 15 built-in task templates across 3 categories
- Real-time execution status with progress bar
- Screenshot preview with zoom and fullscreen
- Integration with HandsPanel for seamless UX
- Zustand store for state management
- Comprehensive test coverage (16 tests)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
