优化：从登录页面点返回直接回到主页

src/App.vue

@@ -43,6 +43,14 @@ const bottomNavValue = computed({
   },
 })
 
+function onBackClick() {
+  if (currentRoute.value === '/login') {
+    router.replace('/')
+  } else {
+    router.back()
+  }
+}
+
 async function refreshUserData() {
   if (!userStore.isLoggedIn) return
   await router.isReady()
@@ -73,7 +81,7 @@ watch(
           variant="text"
           class="back-btn"
           :aria-label="t('common.back')"
-          @click="$router.back()"
+          @click="onBackClick"
         >
           <v-icon>mdi-arrow-left</v-icon>
         </v-btn>