fix

backend/app/schemas/activity.py

@@ -1,7 +1,7 @@
 from datetime import datetime
 from uuid import UUID
 
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 
 
 class ActivityMetricsResponse(BaseModel):
@@ -45,6 +45,10 @@ class ActivityResponse(BaseModel):
     elevation_gain: float | None = None
     metrics: ActivityMetricsResponse | None = None
     intervals: list[IntervalResponse] = []
+    exercise_sets: list[dict] | None = None
+    training_plan_id: UUID | None = None
+    plan_week: int | None = None
+    plan_day: str | None = None
 
 
 class ActivityListResponse(BaseModel):