fix: errors

bo/src/stores/address.ts

@@ -86,16 +86,18 @@ export const useAddressStore = defineStore('address', () => {
 
   function updateAddress(id: number, formData: AddressFormData): boolean {
     const index = addresses.value.findIndex(a => a.id === id)
-    if (index === -1) return false
+    if (index === -1) return false 
+
+    const existing = addresses.value[index]
+    if (!existing) return false 
 
     addresses.value[index] = {
-      ...addresses.value[index],
+      id: existing.id,
       ...normalize(formData)
     }
 
     return true
   }
-
   function deleteAddress(id: number): boolean {
     const index = addresses.value.findIndex(a => a.id === id)
     if (index === -1) return false