Starclock 0.2.1

Refined the admin navigation with a clear current-page indicator, visible keyboard focus, and larger touch targets. All three views remain in one row at narrow widths. Labels, URLs, permissions, scheduling, and MailPoet behavior are unchanged. The package passed all three required compatibility cases with 130 named assertions per case, concurrent reservation checks, and safe test closeout. Native Browser verification covered 1280px, 390px, and 320px. No customer deployment or sending authorization is included.