fix：编辑资料页昵称未填时增加 Toast 提示

mini-program/src/pages/onboarding/index.vue

@@ -308,7 +308,13 @@ const addCustomHobby = () => {
 }
 
 const saveProfile = async () => {
-  if (!form.nickname.trim() || saving.value) return
+  if (saving.value) return
+
+  if (!form.nickname.trim()) {
+    uni.showToast({ title: '请填写昵称', icon: 'none' })
+    return
+  }
+
   saving.value = true
   store.updateRegistration(JSON.parse(JSON.stringify({ ...form, birthday: birthday.value })))
   const res = await store.saveUserProfile()