Add Web Dashboard with multi-device control and callback hooks

Features:
- Web Dashboard: FastAPI-based dashboard with Vue.js frontend
  - Multi-device support (ADB, HDC, iOS)
  - Real-time WebSocket updates for task progress
  - Device management with status tracking
  - Task queue with execution controls (start/stop/re-execute)
  - Detailed task information display (thinking, actions, completion messages)
  - Screenshot viewing per device
  - LAN deployment support with configurable CORS

- Callback Hooks: Interrupt and modify task execution
  - step_callback: Called after each step with StepResult
  - before_action_callback: Called before executing action
  - Support for task interruption and dynamic task switching
  - Example scripts demonstrating callback usage

- Configuration: Environment-based configuration
  - .env file support for all settings
  - .env.example template with documentation
  - Model API configuration (base URL, model name, API key)
  - Dashboard configuration (host, port, CORS, device type)
  - Phone agent configuration (delays, max steps, language)

Technical improvements:
- Fixed forward reference issue with StepResult
- Added package exports for callback types and configs
- Enhanced dependencies with FastAPI, WebSocket support
- Thread-safe task execution with device locking
- Async WebSocket broadcasting from sync thread pool

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

setup.py

@@ -32,6 +32,8 @@ setup(
     install_requires=[
         "Pillow>=12.0.0",
         "openai>=2.9.0",
+        "python-dotenv>=1.0.0",
+        "requests>=2.31.0",
     ],
     extras_require={
         "dev": [
@@ -40,10 +42,19 @@ setup(
             "mypy>=1.0.0",
             "ruff>=0.1.0",
         ],
+        "dashboard": [
+            "fastapi>=0.104.0",
+            "uvicorn[standard]>=0.24.0",
+            "websockets>=12.0",
+            "pydantic>=2.5.0",
+            "python-multipart>=0.0.6",
+            "aiofiles>=23.2.0",
+        ],
     },
     entry_points={
         "console_scripts": [
             "phone-agent=main:main",
+            "autoglm-dashboard=dashboard.main:main",
         ],
     },
 )