feat(pdf): 页脚品牌文案支持插件传入 brandText（唯一事实来源迁至插件 watermark.js，未传回退默认值向后兼容）+ 品牌名统一 XWX Exporter，bump v3.0.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pdf-server",
-  "version": "2.1.11",
+  "version": "3.0.0",
   "description": "Puppeteer PDF + Widget Renderer for XWX AI Chat Exporter",
   "main": "server.js",
   "dependencies": {

reproduce-realistic.js

@@ -718,7 +718,7 @@ function generateLargeHtml(targetSizeMB) {
   <div class="chat-container">\`;
 
   const footerHtml = \`  </div>
-  <div class="pdf-footer"><span>Powered by <a href="https://xwxexporter.com/tools/chat-exporter" target="_blank">XWX AI Chat Exporter</a></span></div>
+  <div class="pdf-footer"><span>Powered by <a href="https://xwxexporter.com/tools/chat-exporter" target="_blank">XWX Exporter</a></span></div>
 </body>
 </html>\`;
 

server.js

@@ -227,7 +227,7 @@ app.post('/api/generate_pdf', async (req, res) => {
   const startTime = Date.now();
 
   // ── 功能性字段（PDF渲染业务逻辑依赖，保持顶层） ──
-  const { html, textOnlySizeMB, codeTheme, showWatermark,
+  const { html, textOnlySizeMB, codeTheme, showWatermark, brandText,
           imageCount, totalImageSizeMB, messageCount } = req.body;
 
   // ── 遥测数据：通用 metadata 对象，后端不做任何解析/格式化，原样透传 ──
@@ -272,7 +272,11 @@ app.post('/api/generate_pdf', async (req, res) => {
       htmlToProcess = highlightHtmlWithShiki(html, 'github');
     }
 
-    const brandText = showWatermark !== false ? 'Powered by XWX AI Chat Exporter' : '';
+    // 每页页脚品牌文案：优先使用插件传入的 brandText（唯一事实来源在插件 src/utils/watermark.js），
+    // 未传时回退默认值，向后兼容旧版插件
+    const brandTextResolved = showWatermark !== false
+      ? (typeof brandText === 'string' && brandText.trim() ? brandText : 'Powered by XWX AI Chat Exporter')
+      : '';
     const htmlSizeMBNum = Buffer.byteLength(html, 'utf8') / (1024 * 1024);
     const htmlSizeMB = htmlSizeMBNum.toFixed(2);
     const imgCount = imageCount || 0;
@@ -547,7 +551,7 @@ app.post('/api/generate_pdf', async (req, res) => {
       headerTemplate: '<div></div>',
       footerTemplate: `
         <div style="font-size: 10px; font-family: Arial, sans-serif; color: #999; width: 100%; padding: 0 15mm; display: flex; justify-content: space-between; align-items: center;">
-            <div style="flex: 1; text-align: left;">${brandText}</div>
+            <div style="flex: 1; text-align: left;">${brandTextResolved}</div>
             <div style="flex: 1; text-align: right;"><span class="pageNumber"></span> / <span class="totalPages"></span></div>
         </div>
       `,