fix foreign keys

backend/app/dtos/house_create_request.py

@@ -1,9 +1,9 @@
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 
 class HouseCreateRequest(BaseModel):
-    address: str
-    city: str
-    country: str
-    price: float
-    description: str
+    address: str = Field(..., min_length=1, max_length=255, description="House address", examples=["123 Main St"])
+    city: str = Field(..., description="City where the house is located", examples=["Springfield"])
+    country: str = Field(..., description="Country where the house is located", examples=["USA"])
+    price: float = Field(..., description="Price of the house", examples=[250000.00])
+    description: str = Field(..., description="Description of the house", examples=["A beautiful 3-bedroom house"])