feat: 支持 Gemini 格式请求，并优化日志和配置

app/middleware/request_logging_middleware.py

@@ -0,0 +1,36 @@
+from fastapi import Request
+from starlette.middleware.base import BaseHTTPMiddleware
+import json
+from app.core.logger import get_request_logger
+
+
+logger = get_request_logger()
+
+# 添加中间件类
+class RequestLoggingMiddleware(BaseHTTPMiddleware):
+    async def dispatch(self, request: Request, call_next):
+        # 记录请求路径
+        logger.info(f"Request path: {request.url.path}")
+        
+        # 获取并记录请求体
+        try:
+            body = await request.body()
+            if body:
+                body_str = body.decode()
+                # 尝试格式化JSON
+                try:
+                    formatted_body = json.loads(body_str)
+                    logger.info(f"Formatted request body:\n{json.dumps(formatted_body, indent=2, ensure_ascii=False)}")
+                except json.JSONDecodeError:
+                    logger.info("Request body is not valid JSON.")
+        except Exception as e:
+            logger.error(f"Error reading request body: {str(e)}")
+
+        # 重置请求的接收器，以便后续处理器可以继续读取请求体
+        async def receive():
+            return {"type": "http.request", "body": body, "more_body": False}
+
+        request._receive = receive
+
+        response = await call_next(request)
+        return response