A small security follow-up to 4.6.3. Every first-time setup route now respects the one-time claim gate (not just the main one), so a fresh, unclaimed panel cannot be set up by anyone other than its owner. This only affects a panel during its very first setup; configured panels and their users are unaffected. Includes the 4.6.3 Telegram-login fix and all 4.6.x stability fixes for the 1101 error.