Add Product schema

schemas/product.py

@@ -0,0 +1,27 @@
+from pydantic import BaseModel, Field, constr
+from typing import Optional
+
+class ProductBase(BaseModel):
+    name: constr(min_length=1) = Field(..., description="Product name")
+    description: Optional[str] = Field(None, description="Product description")
+    price: float = Field(..., gt=0, description="Product price")
+    stock_quantity: int = Field(..., ge=0, description="Product stock quantity")
+
+    class Config:
+        schema_extra = {
+            "example": {
+                "name": "Product Name",
+                "description": "This is a product description",
+                "price": 9.99,
+                "stock_quantity": 100
+            }
+        }
+
+class ProductCreate(ProductBase):
+    pass
+
+class ProductResponse(ProductBase):
+    id: int
+
+    class Config:
+        orm_mode = True