Add Breed schema

schemas/breed.py

@@ -0,0 +1,23 @@
+from pydantic import BaseModel, Field
+
+class BreedBase(BaseModel):
+    name: str = Field(..., min_length=1, unique=True, index=True, description="Breed name")
+    description: str | None = Field(None, description="Breed description")
+    origin: str | None = Field(None, description="Breed origin")
+    breed_group: str | None = Field(None, description="Breed group")
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "name": "Labrador Retriever",
+                "description": "Friendly, outgoing, and high-spirited companions",
+                "origin": "Canada",
+                "breed_group": "Sporting"
+            }
+        }
+
+class BreedCreate(BreedBase):
+    pass
+
+class BreedResponse(BreedBase):
+    id: int