refactor: done phase 1

REFACTOR_PLAN.md

@@ -113,50 +113,58 @@ core/
 
 # Comprehensive TODO List
 
-## 📋 Phase 1: Project Setup & Communication Layer
+## ✅ Phase 1: Project Setup & Communication Layer - COMPLETED
 
 ### 1.1 Project Structure Setup
-- [ ] Create `core/` directory structure
-- [ ] Create all module directories and `__init__.py` files
-- [ ] Set up logging configuration for new modules
-- [ ] Update imports in existing files to prepare for migration
+- ✅ Create `core/` directory structure
+- ✅ Create all module directories and `__init__.py` files
+- ✅ Set up logging configuration for new modules
+- ✅ Update imports in existing files to prepare for migration
 
 ### 1.2 Communication Module (`core/communication/`)
-- [ ] **Create `models.py`** - Message data structures
-  - [ ] Define WebSocket message models (SubscriptionList, StateReport, etc.)
-  - [ ] Add validation schemas for incoming messages
-  - [ ] Create response models for outgoing messages
+- ✅ **Create `models.py`** - Message data structures
+  - ✅ Define WebSocket message models (SubscriptionList, StateReport, etc.)
+  - ✅ Add validation schemas for incoming messages
+  - ✅ Create response models for outgoing messages
 
-- [ ] **Create `messages.py`** - Message types and validation
-  - [ ] Implement message type constants
-  - [ ] Add message validation functions
-  - [ ] Create message builders for common responses
+- ✅ **Create `messages.py`** - Message types and validation
+  - ✅ Implement message type constants
+  - ✅ Add message validation functions
+  - ✅ Create message builders for common responses
 
-- [ ] **Create `websocket.py`** - WebSocket message handling
-  - [ ] Extract WebSocket connection management from `app.py`
-  - [ ] Implement message routing and dispatching
-  - [ ] Add connection lifecycle management (connect, disconnect, reconnect)
-  - [ ] Handle `setSubscriptionList` message processing
-  - [ ] Handle `setSessionId` and `setProgressionStage` messages
-  - [ ] Handle `requestState` and `patchSessionResult` messages
+- ✅ **Create `websocket.py`** - WebSocket message handling
+  - ✅ Extract WebSocket connection management from `app.py`
+  - ✅ Implement message routing and dispatching
+  - ✅ Add connection lifecycle management (connect, disconnect, reconnect)
+  - ✅ Handle `setSubscriptionList` message processing
+  - ✅ Handle `setSessionId` and `setProgressionStage` messages
+  - ✅ Handle `requestState` and `patchSessionResult` messages
 
-- [ ] **Create `state.py`** - Worker state management
-  - [ ] Extract state reporting logic from `app.py`
-  - [ ] Implement system metrics collection (CPU, memory, GPU)
-  - [ ] Manage active subscriptions state
-  - [ ] Handle session ID mapping and storage
+- ✅ **Create `state.py`** - Worker state management
+  - ✅ Extract state reporting logic from `app.py`
+  - ✅ Implement system metrics collection (CPU, memory, GPU)
+  - ✅ Manage active subscriptions state
+  - ✅ Handle session ID mapping and storage
 
 ### 1.3 HTTP API Preservation
-- [ ] **Preserve `/camera/{camera_id}/image` endpoint**
-  - [ ] Extract REST API logic from `app.py`
-  - [ ] Ensure frame caching mechanism works with new structure
-  - [ ] Maintain exact same response format and error handling
+- ✅ **Preserve `/camera/{camera_id}/image` endpoint**
+  - ✅ Extract REST API logic from `app.py`
+  - ✅ Ensure frame caching mechanism works with new structure
+  - ✅ Maintain exact same response format and error handling
 
 ### 1.4 Testing Phase 1
-- [ ] Test WebSocket connection and message handling
-- [ ] Test HTTP API endpoint functionality
-- [ ] Verify state reporting works correctly
-- [ ] Test session management functionality
+- ✅ Test WebSocket connection and message handling
+- ✅ Test HTTP API endpoint functionality
+- ✅ Verify state reporting works correctly
+- ✅ Test session management functionality
+
+### 1.5 Phase 1 Results
+- ✅ **Modular Architecture**: Transformed ~900 lines into 4 focused modules (~200 lines each)
+- ✅ **WebSocket Protocol**: Full compliance with worker.md specification
+- ✅ **System Metrics**: Real-time CPU, memory, GPU monitoring
+- ✅ **State Management**: Thread-safe subscription and session tracking
+- ✅ **Backward Compatibility**: All existing endpoints preserved
+- ✅ **Modern FastAPI**: Lifespan events, Pydantic v2 compatibility
 
 ## 📋 Phase 2: Pipeline Configuration & Model Management