feat(auth): 增强Gemini API的认证机制支持URL参数

- 将generate_content和stream_generate_content端点的认证依赖从verify_goog_api_key更改为verify_key_or_goog_api_key
- 使Gemini API同时支持URL参数中的key和请求头中的x-goog-api-key进行认证
- 提高API的灵活性，便于不同客户端集成

app/domain/gemini_models.py

@@ -1,4 +1,4 @@
-from typing import List, Optional, Dict, Any, Literal
+from typing import List, Optional, Dict, Any, Literal, Union
 from pydantic import BaseModel
 
 
@@ -34,7 +34,7 @@ class GeminiContent(BaseModel):
 
 class GeminiRequest(BaseModel):
     contents: List[GeminiContent] = []
-    tools: Optional[List[Dict[str, Any]]] = []
+    tools: Optional[Union[List[Dict[str, Any]], Dict[str, Any]]] = []
     safetySettings: Optional[List[SafetySetting]] = None
     generationConfig: Optional[GenerationConfig] = None
     systemInstruction: Optional[SystemInstruction] = None

app/router/gemini_routes.py

@@ -86,7 +86,7 @@ async def list_models(
 async def generate_content(
     model_name: str,
     request: GeminiRequest,
-    _=Depends(security_service.verify_goog_api_key),
+    _=Depends(security_service.verify_key_or_goog_api_key),
     api_key: str = Depends(get_next_working_key),
     key_manager: KeyManager = Depends(get_key_manager)
 ):
@@ -118,7 +118,7 @@ async def generate_content(
 async def stream_generate_content(
     model_name: str,
     request: GeminiRequest,
-    _=Depends(security_service.verify_goog_api_key),
+    _=Depends(security_service.verify_key_or_goog_api_key),
     api_key: str = Depends(get_next_working_key),
     key_manager: KeyManager = Depends(get_key_manager)
 ):

app/service/chat/gemini_chat_service.py

@@ -44,6 +44,8 @@ def _build_tools(model: str, payload: Dict[str, Any]) -> List[Dict[str, Any]]:
 
     tool = dict()
     if payload and isinstance(payload, dict) and "tools" in payload:
+        if payload.get("tools") and isinstance(payload.get("tools"), dict):
+            payload["tools"] = [payload.get("tools")]
         items = payload.get("tools", [])
         if items and isinstance(items, list):
             tool.update(_merge_tools(items))