Initial scaffold: FastAPI micro-service with Docker, SQLite, tests

app/models.py

@@ -0,0 +1,18 @@
+"""Pydantic models for request/response schemas."""
+
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel, ConfigDict
+
+
+class ItemCreate(BaseModel):
+    name: str
+
+
+class ItemResponse(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    name: str
+    created_at: Optional[datetime] = None