feat(home page): add statistical interface

api/app/schemas/home_page_schema.py

@@ -0,0 +1,32 @@
+from datetime import datetime
+from pydantic import BaseModel, field_serializer
+from typing import Optional
+
+from app.core.api_key_utils import datetime_to_timestamp
+
+
+class HomeStatistics(BaseModel):
+    """首页统计数据"""
+    total_models: int
+    new_models_this_month: int
+    active_workspaces: int
+    new_workspaces_this_month: int
+    total_users: int
+    new_users_this_month: int
+    running_apps: int
+    new_apps_this_week: int
+
+class WorkspaceInfo(BaseModel):
+    """工作空间信息"""
+    id: str
+    name: str
+    icon: Optional[str]
+    description: Optional[str]
+    app_count: int
+    user_count: int
+    created_at: datetime
+
+    @field_serializer('created_at')
+    @classmethod
+    def serialize_datetime(cls, v: datetime) -> Optional[int]:
+        return datetime_to_timestamp(v)