添加头像上传功能，优化滚动条样式，调整Gallery页面下载按钮样式，新增自动登录API

src/views/Gallery.vue

@@ -9,8 +9,9 @@
       </template>
     </n-input>
 
-    <Waterfall class="ml-[10%] !w-[80%]" ref="waterfall" :list="fileList" :gutter="gutter" :columns="column" img-selector="url"
-      animation-effect="fadeIn" :animation-duration="1000" :animation-delay="300" backgroundColor="transparent"> >
+    <Waterfall class="ml-[10%] !w-[80%]" ref="waterfall" :list="fileList" :gutter="gutter" :columns="column"
+      img-selector="url" animation-effect="fadeIn" :animation-duration="1000" :animation-delay="300"
+      backgroundColor="transparent"> >
       <template #item="{ item }">
         <div
           class="card rounded-md shadow-lg overflow-hidden group transition-transform duration-300 box-border hover:-translate-y-1.5">
@@ -22,9 +23,12 @@
             {{ item.filename }}
           </div>
           <div
-            class="absolute rounded-md flex z-10 truncate bottom-0  w-full bg-[#00000070] text-white justify-between items-center">
+            class="absolute rounded-md flex px-2 z-10 truncate bottom-0  w-full bg-[#00000070] text-white justify-between items-center">
             <div>由 <span class="text-[#f1d9db] font-600">{{ item.nickname }}</span> 分享</div>
-            <icon-download class="cursor-pointer w-4 h-4" @click="downloadFile(item.filepath)" />
+            <div class="text-sm cursor-pointer text-primary" @click="downloadFile(item.filepath)">
+              <icon-download class="w-4 h-4" />
+              下载
+            </div>
           </div>
         </div>
       </template>