feat: add drag upload for rn bundles

tenant-platform/src/views/update/VersionManagementView.vue

@@ -588,8 +588,23 @@
     <el-dialog v-model="showUploadRn" title="上传 RN Bundle" :width="dialogWidth">
       <el-form :model="rnUploadForm" label-width="120px">
         <el-form-item label="Bundle 文件">
-          <el-upload :auto-upload="false" :limit="1" :on-change="onRnBundleChange" accept=".bundle,.js">
+          <el-upload
-            <el-button>选择文件</el-button>
+            class="bundle-dropzone"
+            drag
+            :auto-upload="false"
+            :limit="1"
+            :on-change="onRnBundleChange"
+            accept=".bundle,.js"
+          >
+            <el-icon class="el-icon--upload"><UploadFilled /></el-icon>
+            <div class="el-upload__text">
+              将 RN Bundle 拖到这里，或 <em>点击选择文件</em>
+            </div>
+            <template #tip>
+              <div class="el-upload__tip">
+                选择或拖入文件后会自动识别模块、平台、版本和 Common 版本。
+              </div>
+            </template>
           </el-upload>
         </el-form-item>
         <el-form-item v-if="rnInspectUploadProgress > 0" label="识别进度">
@@ -1875,6 +1890,34 @@ onBeforeUnmount(() => {
   color: var(--el-text-color-secondary);
 }
 
+.bundle-dropzone {
+  width: 100%;
+}
+
+.bundle-dropzone :deep(.el-upload) {
+  width: 100%;
+}
+
+.bundle-dropzone :deep(.el-upload-dragger) {
+  width: 100%;
+  min-height: 180px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 24px;
+  border-radius: 16px;
+}
+
+.bundle-dropzone :deep(.el-upload__text) {
+  margin-top: 12px;
+  color: var(--el-text-color-primary);
+}
+
+.bundle-dropzone :deep(.el-upload__tip) {
+  text-align: center;
+  color: var(--el-text-color-secondary);
+}
+
 .gray-member-groups {
   width: 100%;
 }