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

shop/components/admin/category-dialog.tsx

@@ -1,6 +1,7 @@
 'use client'
 
 import { useState } from 'react'
+import { useRouter } from 'next/navigation'
 import { useForm } from 'react-hook-form'
 import { zodResolver } from '@hookform/resolvers/zod'
 import * as z from 'zod'
@@ -54,6 +55,7 @@ export function CategoryDialog({
   category?: Category 
 }) {
   const [open, setOpen] = useState(false)
+  const router = useRouter()
 
   const form = useForm<CategoryFormValues>({
     resolver: zodResolver(categorySchema) as any,
@@ -75,6 +77,7 @@ export function CategoryDialog({
       }
       setOpen(false)
       form.reset()
+      router.refresh()
     } catch (error) {
       console.error('Error saving category:', error)
     }