feat: add Docker support for offline deployment with qwen3:14b

Major additions:
- All-in-One Docker image with Ollama + models bundled
- Separate deployment option for existing Ollama installations
- Changed default model from qwen3:8b to qwen3:14b
- Comprehensive deployment documentation

Files added:
- Dockerfile: Basic app-only image
- Dockerfile.allinone: Complete image with Ollama + models
- docker-compose.yml: Easy deployment configuration
- docker-entrypoint.sh: Startup script for all-in-one image
- requirements.txt: Python dependencies
- .dockerignore: Exclude unnecessary files from image

Scripts:
- export-ollama-models.sh: Export models from local Ollama
- build-allinone.sh: Build complete offline-deployable image
- build-and-export.sh: Build and export basic image

Documentation:
- DEPLOYMENT.md: Comprehensive deployment guide
- QUICK_START.md: Quick reference for common tasks

Configuration:
- Updated config.py: DEFAULT_CHAT_MODEL = qwen3:14b
- Updated frontend/opro.html: Page title to 系统提示词优化

docker-compose.yml

@@ -0,0 +1,23 @@
+version: '3.8'
+
+services:
+  app:
+    build: .
+    container_name: system-prompt-optimizer
+    ports:
+      - "8010:8010"
+    environment:
+      - OLLAMA_HOST=http://host.docker.internal:11434
+      - PYTHONUNBUFFERED=1
+    volumes:
+      - ./outputs:/app/outputs
+    restart: unless-stopped
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8010/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 5s
+