Sub-ticket of MARS-197 Glow spotlight on 'Mi propia práctica' toggle at /practicas/nueva for one week, self-expiring after 2026-07-02 ART (cutoff 2026-07-03T03:00:00Z). Date-gated glow class, no env var / no DB flag — auto-disables July 3 with zero intervention. Elazar new-feature spotlight for the dual-role fix. · mars