fix: not login

pages/mine/mine.vue

@@ -52,7 +52,10 @@
           
           <view class="action-buttons">
             <button class="btn-primary" @tap="navTo('profile')">编辑资料</button>
-            <button class="btn-secondary" open-type="share">
+            <button v-if="isLoggedIn" class="btn-secondary" open-type="share">
+              <text class="share-icon-btn"></text> 分享主页
+            </button>
+            <button v-else class="btn-secondary" @tap="openLoginPopup('请先登录后再分享主页')">
               <text class="share-icon-btn"></text> 分享主页
             </button>
           </view>
@@ -175,7 +178,7 @@ onShareTimeline(async () => {
 
 const handleUserClick = () => {
   if (!isLoggedIn.value) {
-    loginPopupRef.value.open();
+    openLoginPopup("请先登录");
   } else {
     uni.navigateTo({
       url: "/pages/mine/profile",
@@ -187,10 +190,16 @@ const handleLogind = async () => {
   loadUserStats();
 };
 
+const openLoginPopup = (message = "请先登录") => {
+  loginPopupRef.value.open();
+  if (message) {
+    uni.showToast({ title: message, icon: "none" });
+  }
+};
+
 const navTo = (page) => {
   if (!isLoggedIn.value) {
-    loginPopupRef.value.open();
-    uni.showToast({ title: "请先登录", icon: "none" });
+    openLoginPopup("请先登录");
     return;
   }