fix branding

server/routes/branding.js

@@ -50,12 +50,11 @@ async function getSetting(key) {
 // Helper: set setting in DB
 async function setSetting(key, value) {
   const db = getDb();
-  // Upsert
-  const existing = await db.get('SELECT key FROM settings WHERE key = ?', [key]);
-  if (existing) {
-    await db.run('UPDATE settings SET value = ?, updated_at = CURRENT_TIMESTAMP WHERE key = ?', [value, key]);
-  } else {
-    await db.run('INSERT INTO settings (key, value) VALUES (?, ?)', [key, value]);
+  // Try update first, then insert if nothing was updated
+  const result = await db.run('UPDATE settings SET value = ?, updated_at = CURRENT_TIMESTAMP WHERE key = ?', [value, key]);
+  if (result.changes === 0) {
+    // Use INSERT with a dummy RETURNING to satisfy PG adapter, or just use exec-style
+    await db.run('INSERT INTO settings (key, value) VALUES (?, ?) RETURNING key', [key, value]);
   }
 }