feat(classes): add tyrant class assignment

design/log.md

@@ -6,6 +6,17 @@ description: Chronological record of material decisions affecting the Spigot Tyr
 
 # Spigot Tyrant Design Log
 
+## 2026-08-14 — Tyrant class assignment completed
+
+- Completed US-004 with `/tyrant assign <class> <player>`, purchased-class authorization, UUID state, one holder per class, and one Tyrant-side class per player.
+- Preserved dual alignment so Vigilantes and Followers can hold a Tyrant-side class, while rejecting the Tyrant and opted-out targets.
+- Added reassignment and reign cleanup for class cooldown/item state, online assignment/removal notices, and login control reminders.
+- Verified assignment constraints, dual alignment, cleanup, commands, notifications, and reminders with the Gradle test suite.
+
+## 2026-08-14 — Tyrant class assignment implementation started
+
+- US-004 begins with test-first purchased-class authorization, one-holder constraints, dual alignment, reassignment cleanup, and reign-wide removal.
+
 ## 2026-08-14 — Tyrant progression completed
 
 - Completed US-003 with exact Tyrant-on-Vigilante kill attribution, level and choice rewards, pause guards, one-time purchases, and reign reset behavior.