Improve map editor workflow controls

tools/map_editor/index.html

@@ -13,19 +13,23 @@
       <p>编辑游戏运行时使用的 Frostbite2D .map 文本地图。</p>
     </div>
     <div class="header-actions">
+      <button id="undoButton" type="button" disabled>撤回</button>
       <button id="loadSampleButton" type="button">加载 stage_01.map</button>
       <label class="file-button">
         打开 .map
         <input id="fileInput" type="file" accept=".map,text/plain">
       </label>
-      <button id="downloadButton" type="button">下载 .map</button>
+      <button id="downloadButton" type="button" class="primary-button">保存并下载</button>
     </div>
   </header>
 
   <main class="editor-shell">
     <aside class="panel left-panel">
-      <section>
-        <h2>地图</h2>
+      <section class="tool-card">
+        <div class="section-title">
+          <h2>地图设置</h2>
+          <span>基础参数</span>
+        </div>
         <div class="field-grid">
           <label>
             地图 ID
@@ -57,8 +61,11 @@
         </div>
       </section>
 
-      <section>
-        <h2>新增</h2>
+      <section class="tool-card">
+        <div class="section-title">
+          <h2>新增对象</h2>
+          <span>放到当前视图中心</span>
+        </div>
         <div class="button-grid">
           <button id="addTilesetButton" type="button">图块集</button>
           <button id="addLayerButton" type="button">图层</button>
@@ -73,8 +80,11 @@
         </div>
       </section>
 
-      <section class="object-section">
-        <h2>对象</h2>
+      <section class="tool-card object-section">
+        <div class="section-title">
+          <h2>对象列表</h2>
+          <span>点击选择后可拖动</span>
+        </div>
         <div id="objectList" class="object-list"></div>
       </section>
     </aside>
@@ -92,6 +102,10 @@
         <h2>选中对象</h2>
         <div id="selectionSummary" class="selection-summary">未选择对象。</div>
         <div id="propertyPanel" class="property-panel"></div>
+        <div class="layer-actions">
+          <button id="moveLayerUpButton" type="button">图层上移</button>
+          <button id="moveLayerDownButton" type="button">图层下移</button>
+        </div>
         <button id="deleteButton" type="button" class="danger-button">删除选中对象</button>
       </section>