fix: 完善活动公告，修复图片生成参考图无法放大问题。

Yi.Ai.Vue3/src/pages/chat/image/components/ImageGenerator.vue

@@ -46,6 +46,8 @@ const generating = ref(false);
 const currentTaskId = ref('');
 const currentTask = ref<TaskStatusResponse | null>(null);
 const showViewer = ref(false);
+const referenceImageViewerVisible = ref(false);
+const referenceImagePreviewUrl = ref('');
 let pollTimer: any = null;
 let debounceTimer: any = null;
 
@@ -130,6 +132,17 @@ function handleRemove(file: UploadFile) {
     fileList.value.splice(index, 1);
 }
 
+function handlePreview(file: UploadFile) {
+  if (file.url) {
+    referenceImagePreviewUrl.value = file.url;
+    referenceImageViewerVisible.value = true;
+  }
+}
+
+function closeReferenceImageViewer() {
+  referenceImageViewerVisible.value = false;
+}
+
 // Handle paste event for reference images
 function handlePaste(event: ClipboardEvent) {
   const items = event.clipboardData?.items;
@@ -510,6 +523,7 @@ onUnmounted(() => {
                 :limit="2"
                 :on-change="handleFileChange"
                 :on-remove="handleRemove"
+                :on-preview="handlePreview"
                 accept=".jpg,.jpeg,.png,.bmp,.webp"
                 :class="{ 'hide-upload-btn': fileList.length >= 2 }"
               >
@@ -644,6 +658,15 @@ onUnmounted(() => {
       </div>
     </div>
   </div>
+
+  <!-- 参考图预览组件 -->
+  <teleport to="body">
+    <el-image-viewer
+      v-if="referenceImageViewerVisible && referenceImagePreviewUrl"
+      :url-list="[referenceImagePreviewUrl]"
+      @close="closeReferenceImageViewer"
+    />
+  </teleport>
 </template>
 
 <style scoped>