Update Dockerfile

Dockerfile

@@ -9,13 +9,13 @@ ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1
 
 # 安装依赖
-RUN pip install --upgrade pip \
+RUN pip install --upgrade pip && \
     pip install --no-cache-dir \
-    aiohttp==3.11.11 \
-    colorlog==6.9.0 \
-    fastapi==0.115.8 \
-    python-dotenv==1.0.1 \
-    "uvicorn[standard]"
+        aiohttp==3.11.11 \
+        colorlog==6.9.0 \
+        fastapi==0.115.8 \
+        python-dotenv==1.0.1 \
+        "uvicorn[standard]"
 
 # 复制项目文件
 COPY ./app ./app
@@ -24,4 +24,4 @@ COPY ./app ./app
 EXPOSE 8000
 
 # 启动命令
-CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]