fix: resolve customer creation fk violation and implement instant updates in admin dialogs

shop/components/admin/create-product-dialog.tsx

@@ -1,6 +1,7 @@
 'use client'
 
 import { useState } from 'react'
+import { useRouter } from 'next/navigation'
 import { useForm, useFieldArray } from 'react-hook-form'
 import { zodResolver } from '@hookform/resolvers/zod'
 import * as z from 'zod'
@@ -60,6 +61,7 @@ type ProductFormValues = z.infer<typeof productSchema>
 
 export function CreateProductDialog({ children, categories, product }: { children?: React.ReactNode, categories: Category[], product?: Product }) {
   const [open, setOpen] = useState(false)
+  const router = useRouter()
 
   const form = useForm<ProductFormValues>({
     resolver: zodResolver(productSchema) as any,
@@ -102,6 +104,7 @@ export function CreateProductDialog({ children, categories, product }: { childre
       
       setOpen(false)
       if (!product) form.reset()
+      router.refresh()
     } catch (error) {
       console.error('Error saving product:', error)
     }