fix: dynamic site name from DB, displayed in header/title/sidebar

backend/server.js

@@ -17,6 +17,19 @@ const HTML_PATH = path.join(PUBLIC_DIR, 'index.html');
 
 let cachedHtml = null;
 let htmlTimestamp = 0;
+let cachedSiteName = 'MC举报系统';
+
+function getSiteName() { return cachedSiteName; }
+
+async function refreshSiteName() {
+  if (!isInstalled()) return;
+  try {
+    const { getPool } = require('./db');
+    const p = await getPool();
+    const [rows] = await p.execute("SELECT v FROM settings WHERE k='site_name'");
+    if (rows.length > 0) cachedSiteName = rows[0].v;
+  } catch {}
+}
 
 function getHtmlWithKey() {
   const stat = fs.statSync(HTML_PATH);
@@ -26,7 +39,7 @@ function getHtmlWithKey() {
   const cfg = getConfig();
   const key = cfg?.api_key || '';
   const redirect = isInstalled() ? '' : '<script>location.hash="#/install"</script>';
-  html = html.replace('</head>', `<script>window.__API_KEY__=${JSON.stringify(key)}</script>${redirect}</head>`);
+  html = html.replace('</head>', `<script>window.__API_KEY__=${JSON.stringify(key)};window.__SITE_NAME__=${JSON.stringify(cachedSiteName)}</script>${redirect}</head>`);
   cachedHtml = html;
   htmlTimestamp = mtime;
   return html;
@@ -135,6 +148,6 @@ app.use((err, req, res, next) => {
 });
 
 app.listen(PORT, () => {
-  if (isInstalled()) console.log(`Server running at http://localhost:${PORT}`);
+  if (isInstalled()) { refreshSiteName().then(() => console.log(`Server running at http://localhost:${PORT}`)); }
   else console.log(`System not installed. Visit http://localhost:${PORT}/#/install`);
 }).on('error', (err) => { console.error('Failed to start:', err.message); process.exit(1); });