new init

apps/backend/app/schemas/product.py

@@ -0,0 +1,28 @@
+from pydantic import BaseModel
+from typing import Optional
+from datetime import datetime
+
+class ProductBase(BaseModel):
+    name: str
+    price_cents: int                        # Verkaufspreis (falls genutzt)
+    purchase_price_cents: int = 0          # 🆕 EK je Einheit (Cent)
+    pack_size: int = 1                     # 🆕 6, 12, 24 ...
+    supplier_number: Optional[str] = None
+    volume_ml: Optional[int] = None
+    category: Optional[str] = None
+    stock: int = 0                         # Default sinnvoller
+    is_active: bool = True                 # Default sinnvoller
+
+class ProductCreate(ProductBase):
+    pass
+
+class ProductUpdate(ProductBase):
+    pass
+
+class ProductOut(ProductBase):
+    id: int
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True