feat: replay E2E fonctionnel — 25/25 actions, 0 retries, SomEngine via serveur

Validé sur PC Windows (DESKTOP-58D5CAC, 2560x1600) :
- 8 clics résolus visuellement (1 anchor_template, 1 som_text_match, 6 som_vlm)
- Score moyen 0.75, temps moyen 1.6s
- Texte tapé correctement (bonjour, test word, date, email)
- 0 retries, 2 actions non vérifiées (OK)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.kiro/specs/gpu-resource-manager/tasks.md

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+# Implementation Plan
+
+- [x] 1. Set up project structure and core interfaces
+  - [x] 1.1 Create core/gpu/gpu_resource_manager.py with GPUResourceManager class skeleton
+    - Define ExecutionMode, ModelState enums
+    - Define GPUResourceConfig, GPUResourceStatus, VRAMInfo dataclasses
+    - Implement singleton pattern
+    - _Requirements: 2.1, 5.1, 5.2, 5.3_
+  - [x] 1.2 Create core/gpu/ollama_manager.py with OllamaManager class
+    - Implement Ollama API client (load_model, unload_model, is_model_loaded)
+    - Add connection health check
+    - _Requirements: 1.1, 1.2, 1.5_
+  - [x] 1.3 Create core/gpu/vram_monitor.py with VRAMMonitor class
+    - Implement pynvml wrapper for VRAM queries
+    - Add fallback for systems without GPU
+    - _Requirements: 1.4, 2.1, 6.1_
+  - [x] 1.4 Write property test for OllamaManager
+    - **Property 10: ensure_vlm_loaded blocking**
+    - **Property 11: ensure_vlm_unloaded blocking**
+    - **Validates: Requirements 5.1, 5.2**
+
+- [x] 2. Implement VLM lifecycle management
+  - [x] 2.1 Implement ensure_vlm_loaded() in GPUResourceManager
+    - Add async loading with timeout
+    - Implement retry logic (max 3 retries)
+    - Queue concurrent requests
+    - _Requirements: 5.1, 5.4, 6.2_
+  - [x] 2.2 Implement ensure_vlm_unloaded() in GPUResourceManager
+    - Add async unloading with timeout
+    - Verify VRAM decrease
+    - _Requirements: 5.2, 1.4_
+  - [x] 2.3 Write property test for VLM lifecycle
+    - **Property 4: VRAM decrease on VLM unload**
+    - **Validates: Requirements 1.4**
+  - [x] 2.4 Write property test for blocking behavior
+    - **Property 10: ensure_vlm_loaded blocking**
+    - **Property 11: ensure_vlm_unloaded blocking**
+    - **Validates: Requirements 5.1, 5.2**
+
+- [x] 3. Implement CLIP device management
+  - [x] 3.1 Create core/gpu/clip_manager.py with CLIPManager class
+    - Implement device detection and migration
+    - Add pipeline reinitialization
+    - _Requirements: 3.1, 3.3, 3.4_
+  - [x] 3.2 Implement migrate_clip_to_gpu() and migrate_clip_to_cpu()
+    - Check VRAM availability before GPU migration
+    - Handle migration failures gracefully
+    - _Requirements: 3.1, 3.2, 3.4_
+  - [x] 3.3 Write property test for CLIP device
+    - **Property 12: get_clip_device validity**
+    - **Validates: Requirements 5.3**
+  - [x] 3.4 Write property test for embedding consistency
+    - **Property 7: Embedding pipeline consistency**
+    - **Validates: Requirements 3.3**
+
+- [x] 4. Checkpoint - Ensure all tests pass
+  - Ensure all tests pass, ask the user if questions arise.
+
+- [x] 5. Implement execution mode management
+  - [x] 5.1 Implement set_execution_mode() with automatic resource management
+    - AUTOPILOT: unload VLM, migrate CLIP to GPU
+    - RECORDING: load VLM, migrate CLIP to CPU
+    - IDLE: no automatic changes
+    - _Requirements: 1.1, 1.2, 1.3, 3.1, 3.2_
+  - [x] 5.2 Implement mode transition coordination
+    - Ensure CLIP migrates before VLM loads
+    - Handle concurrent mode changes
+    - _Requirements: 3.2, 5.4_
+  - [x] 5.3 Write property test for mode transitions
+    - **Property 1: Mode transition triggers VLM unload**
+    - **Property 2: Mode transition triggers VLM load**
+    - **Validates: Requirements 1.1, 1.2**
+  - [x] 5.4 Write property test for CLIP in AUTOPILOT
+    - **Property 3: CLIP on GPU in AUTOPILOT**
+    - **Validates: Requirements 1.3, 3.1**
+  - [x] 5.5 Write property test for migration ordering
+    - **Property 6: CLIP migration ordering**
+    - **Validates: Requirements 3.2**
+
+- [x] 6. Implement idle timeout management
+  - [x] 6.1 Add idle timeout tracking in GPUResourceManager
+    - Track last VLM request timestamp
+    - Implement background timer for timeout check
+    - _Requirements: 4.1, 4.3_
+  - [x] 6.2 Implement on-demand VLM loading
+    - Intercept VLM requests when unloaded
+    - Load VLM before processing request
+    - _Requirements: 4.2_
+  - [x] 6.3 Write property test for idle timeout
+    - **Property 8: Idle timeout behavior**
+    - **Validates: Requirements 4.1, 4.3**
+  - [x] 6.4 Write property test for on-demand loading
+    - **Property 9: On-demand VLM loading**
+    - **Validates: Requirements 4.2**
+
+- [x] 7. Implement monitoring and events
+  - [x] 7.1 Implement get_status() returning complete GPUResourceStatus
+    - Include all fields: vram, vlm_state, clip_device, execution_mode
+    - _Requirements: 2.1_
+  - [x] 7.2 Implement event emission system
+    - resource_changed, mode_changed, idle_unload events
+    - VRAM change threshold detection (100 MB)
+    - _Requirements: 2.2, 2.3, 4.4_
+  - [x] 7.3 Write property test for status completeness
+    - **Property 5: Status query completeness**
+    - **Validates: Requirements 2.1**
+
+- [x] 8. Implement error handling and degraded mode
+  - [x] 8.1 Implement graceful degradation for missing GPU
+    - Detect GPU availability at startup
+    - Force CPU-only mode if no GPU
+    - _Requirements: 6.1_
+  - [x] 8.2 Implement Ollama unavailable handling
+    - Connection retry logic
+    - Degraded mode flag and reason
+    - _Requirements: 1.5, 6.2, 6.3_
+  - [x] 8.3 Implement VRAM insufficient error handling
+    - Check VRAM before operations
+    - Return informative errors
+    - _Requirements: 6.4_
+  - [x] 8.4 Write property test for sequential processing
+    - **Property 13: Sequential operation processing**
+    - **Validates: Requirements 5.4**
+
+- [x] 9. Checkpoint - Ensure all tests pass
+  - Ensure all tests pass, ask the user if questions arise.
+
+- [x] 10. Integration with existing components
+  - [x] 10.1 Integrate GPUResourceManager with ExecutionLoop
+    - Call set_execution_mode() on mode changes
+    - Use ensure_vlm_loaded() before VLM operations
+    - _Requirements: 1.1, 1.2, 4.2_
+  - [x] 10.2 Integrate with UIDetector
+    - Check VLM availability before classification
+    - Handle degraded mode gracefully
+    - _Requirements: 1.5, 6.2_
+  - [x] 10.3 Integrate with FusionEngine/CLIP embedding
+    - Use CLIPManager for device-aware embeddings
+    - Reinitialize on device change
+    - _Requirements: 3.3_
+  - [x] 10.4 Update core/config.py with GPU resource configuration
+    - Add GPUResourceConfig to AppConfig
+    - Support environment variables
+    - _Requirements: 4.3_
+
+- [x] 11. Final Checkpoint - Ensure all tests pass
+  - Ensure all tests pass, ask the user if questions arise.