fix docker file

api/Dockerfile

@@ -24,17 +24,20 @@ WORKDIR /app
 COPY pyproject.toml uv.lock ./
 RUN uv sync --frozen --no-dev --no-install-project
 
-# 复制应用代码
+# 复制应用代码并在镜像内安装项目（避免运行时 uv run 重新 sync 拉 dev 依赖）
 COPY . .
+RUN uv sync --frozen --no-dev
 
 # 非 root 用户
 RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
 USER appuser
 
+ENV PATH="/app/.venv/bin:$PATH"
+
 EXPOSE 8000
 
 HEALTHCHECK --interval=15s --timeout=5s --start-period=120s --retries=6 \
     CMD python -c "import http.client; conn = http.client.HTTPConnection('localhost', 8000); conn.request('GET', '/health'); r = conn.getresponse(); exit(0 if r.status == 200 else 1)" || exit 1
 
 # Alembic 迁移放到 FastAPI startup（带重试与日志）；入口仅启动 web 进程。
-CMD ["sh", "-c", "uv run uvicorn main:app --host 0.0.0.0 --port 8000"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]