refactor(WebServer): reuse editor-toolbar style for text file save/download buttons

Replace custom textfile-toolbar with .editor-toolbar layout matching
the hot-patch toolbar: secondary button for Download, primary button
for Save, separated by a vertical divider.

Author: FASTSHIFT

Tools/WebServer/static/css/workbench.css

@@ -831,45 +831,14 @@ body.resizing-panel .sash {
   content: "\ea76";
 }
 
-/* Text file editor toolbar */
-.textfile-toolbar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  padding: 4px 12px;
-  background: var(--vscode-titlebar-bg);
-  border-bottom: 1px solid var(--vscode-panel-border);
-  font-size: 11px;
-  flex-shrink: 0;
-}
-
+/* Text file editor path display */
 .textfile-path {
   opacity: 0.7;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
   font-family: "Consolas", "Courier New", monospace;
-}
-
-.textfile-actions {
-  display: flex;
-  gap: 4px;
-  flex-shrink: 0;
-}
-
-.textfile-actions button {
-  background: none;
-  border: none;
-  color: var(--vscode-foreground);
-  cursor: pointer;
-  padding: 2px 6px;
-  border-radius: 3px;
-  opacity: 0.7;
-}
-
-.textfile-actions button:hover {
-  opacity: 1;
-  background: var(--vscode-list-hover);
+  font-size: 11px;
 }
 
 .editor-toolbar {

Tools/WebServer/static/js/features/transfer.js

@@ -1048,16 +1048,16 @@ async function openDeviceTextFile(remotePath, fileName, forceText = false) {
     contentDiv.className = 'tab-content';
     contentDiv.id = `tabContent_${tabId}`;
     contentDiv.innerHTML = `
-      <div class="textfile-toolbar">
+      <div class="editor-toolbar" style="display: flex;">
         <span class="textfile-path" title="${escapeHtml(remotePath)}">${escapeHtml(remotePath)}</span>
-        <div class="textfile-actions">
-          <button onclick="saveDeviceTextFile('${tabId}')" title="${escapeHtml(t('transfer.save_to_device', 'Save to device (Ctrl+S)'))}">
-            <i class="codicon codicon-save"></i>
-          </button>
-          <button onclick="downloadTextFileLocal('${tabId}')" title="${escapeHtml(t('transfer.download_to_pc', 'Download to PC'))}">
-            <i class="codicon codicon-desktop-download"></i>
-          </button>
-        </div>
+        <div class="spacer"></div>
+        <button class="vscode-btn secondary" onclick="downloadTextFileLocal('${tabId}')" title="${escapeHtml(t('transfer.download_to_pc', 'Download to PC'))}">
+          <i class="codicon codicon-desktop-download" style="margin-right: 4px"></i> ${escapeHtml(t('transfer.download', 'Download'))}
+        </button>
+        <div style="width: 1px; height: 16px; background: var(--vscode-panel-border); margin: 0 4px"></div>
+        <button class="vscode-btn" onclick="saveDeviceTextFile('${tabId}')" title="${escapeHtml(t('transfer.save_to_device', 'Save to device (Ctrl+S)'))}">
+          <i class="codicon codicon-save" style="margin-right: 4px"></i> ${escapeHtml(t('buttons.save', 'Save'))}
+        </button>
       </div>
       <div class="editor-main">
         <div id="editor_${tabId}" class="ace-editor-container"></div>