feat: 添加Docker部署配置

Dockerfile: 多阶段构建, CPU版PyTorch, 模型预加载

docker-compose: 健康检查, 数据卷持久化, 环境变量注入

requirements.lock.txt: 锁定依赖版本确保构建可复现

requirements.lock.txt

@@ -0,0 +1,17 @@
+# LLM Compass - Docker 锁定依赖 (CPU)
+# 使用 CPU 版 PyTorch，大幅减小镜像体积
+--extra-index-url https://download.pytorch.org/whl/cpu
+fastapi==0.136.0
+uvicorn[standard]==0.44.0
+pydantic==2.12.5
+litellm==1.83.9
+tiktoken==0.12.0
+httpx==0.28.1
+python-dotenv==1.0.1
+torch==2.2.2+cpu
+transformers==4.57.6
+tokenizers==0.22.2
+safetensors==0.4.3
+numpy==1.26.4
+sentencepiece==0.2.1
+huggingface_hub>=0.28.0