feat: added shop models

shop/admin.py

@@ -0,0 +1,51 @@
+from django.contrib import admin
+from shop.models import Product, ProductPrice, OrderLine, Order, Tax
+from unfold.admin import ModelAdmin
+
+
+# Register your models here.
+@admin.register(Product)
+class ProductAdmin(ModelAdmin):
+    search_fields = ("name",)
+    list_display = (
+        "id",
+        "name",
+        "stock",
+        "unit",
+    )
+
+
+@admin.register(ProductPrice)
+class ProductPriceAdmin(ModelAdmin):
+    search_fields = ("product",)
+    autocomplete_fields = ("product",)
+    list_display = (
+        "id",
+        "product",
+        "price",
+        "date",
+    )
+
+
+@admin.register(Tax)
+class TaxAdmin(ModelAdmin):
+    list_display = (
+        "code",
+        "value",
+    )
+
+
+@admin.register(OrderLine)
+class OrderLineAdmin(ModelAdmin):
+    autocomplete_fields = ("product",)
+    list_display = (
+        "id",
+        "product",
+        "price",
+        "quantity",
+    )
+
+
+@admin.register(Order)
+class OrderAdmin(ModelAdmin):
+    list_display = ("id",)