feat: 添加快捷提示词标签，点击即可追加到描述

index.html

@@ -40,6 +40,25 @@
 
     <form id="generateForm">
 
+      <!-- Quick prompts -->
+      <div class="prompt-tags" id="promptTags">
+        <span class="tags-label">快捷描述</span>
+        <div class="tags-list">
+          <button type="button" class="tag-pill" data-tag="雪景，柔和光线，细腻质感">雪景</button>
+          <button type="button" class="tag-pill" data-tag="日落，金色时刻，暖色调">日落</button>
+          <button type="button" class="tag-pill" data-tag="森林，薄雾，空气感，8K">森林</button>
+          <button type="button" class="tag-pill" data-tag="赛博朋克，霓虹灯，夜晚，雨中">赛博朋克</button>
+          <button type="button" class="tag-pill" data-tag="动漫风格，插画，精致细节">动漫风格</button>
+          <button type="button" class="tag-pill" data-tag="人像摄影，单反背景虚化，专业打光">人像</button>
+          <button type="button" class="tag-pill" data-tag="城市夜景，长曝光，车轨">城市夜景</button>
+          <button type="button" class="tag-pill" data-tag="水下摄影，蓝色调，光影">水下</button>
+          <button type="button" class="tag-pill" data-tag="治愈系插画，柔和配色，温暖">治愈系</button>
+          <button type="button" class="tag-pill" data-tag="科幻概念设计，高达，细节丰富">科幻</button>
+          <button type="button" class="tag-pill" data-tag="油画质感，古典，厚重笔触">油画</button>
+          <button type="button" class="tag-pill" data-tag="极简主义，留白，清新">极简</button>
+        </div>
+      </div>
+
       <!-- Prompt -->
       <div class="prompt-row">
         <textarea