v1.24.1 — Dashboard speed + www ServerAlias for apex vhosts

### Performance
- Dashboard load (5+s with 31 domains) — /api/accounts?action=list
  was running du + db_size for every user on every dashboard load.
  Added ?limit=N and ?skip_disk=1 query params; dashboard now uses
  limit=6&skip_disk=1.

### Bug Fixes
- Apex vhosts missing www ServerAlias — the CF tunnel auto-creates
  the www CNAME but the Apache vhost only listened on ServerName.
  add_domain.sh and restore_account.sh now add ServerAlias www.{domain}
  for apex domains.

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

Author: Tux82

TiCore/Version.php

@@ -8,7 +8,7 @@
 
 class Version
 {
-    const APP_VERSION = '1.24';
+    const APP_VERSION = '1.24.1';
 
     /**
      * Return current version string (strips stacked beta suffixes if present).