1、增加调用 AI 视频生成能力和虚拟素材库管理的对外api

2、增加后台apikkey管理
3、增加apikey单独的模型定价
4、增加apikey调用情况
5、完善所有数据的注释增加

video-gen-api/app/schemas/admin_api/api_usage.py

@@ -0,0 +1,36 @@
+from datetime import datetime
+
+from pydantic import BaseModel
+
+
+class ApiUsageLogResponse(BaseModel):
+    """API 使用日志响应。"""
+
+    id: str
+    api_key_id: str
+    api_generation_task_id: str | None
+    request_type: str
+    model_name: str
+    gen_type: str
+    credits_cost: float
+    tokens_used: int
+    request_duration_ms: int
+    status: str
+    error_message: str | None
+    error_code: str | None
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class ApiUsageSummaryResponse(BaseModel):
+    """API 使用汇总响应。"""
+
+    total_requests: int
+    total_credits_cost: float
+    total_tokens_used: int
+    success_count: int
+    failed_count: int
+    avg_duration_ms: int
+    items: list[ApiUsageLogResponse]