initial

backend/app/schemas/activity.py

@@ -0,0 +1,21 @@
+from datetime import datetime
+from pydantic import BaseModel
+
+from app.schemas.user import UserPublic
+
+
+class ActivityResponse(BaseModel):
+    id: int
+    type: str
+    user: UserPublic
+    data: dict | None = None
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class FeedResponse(BaseModel):
+    items: list[ActivityResponse]
+    total: int
+    has_more: bool