added feeding data objects and workflow

src/baby_monitor/models/feeding.py

@@ -0,0 +1,35 @@
+"""Feeding-related request and response models."""
+
+from datetime import datetime
+from pydantic import BaseModel, Field
+
+from baby_monitor.models.enums import FeedingType
+
+
+class CreateFeedingRequest(BaseModel):
+    """Request model for creating a feeding log."""
+
+    child_id: int = Field(..., gt=0)
+    start_time: datetime
+    end_time: datetime | None = None
+    feeding_type: FeedingType
+
+
+class UpdateFeedingRequest(BaseModel):
+    """Request model for updating a feeding log."""
+
+    start_time: datetime | None = None
+    end_time: datetime | None = None
+    feeding_type: FeedingType | None = None
+
+
+class FeedingResponse(BaseModel):
+    """Response model for feeding log data."""
+
+    id: int
+    child_id: int
+    start_time: datetime
+    end_time: datetime | None
+    feeding_type: str
+    created_at: datetime
+    child_name: str | None = None  # Optional, populated when needed