feat(participation): isolate opted-out combat

design/log.md

@@ -6,6 +6,18 @@ description: Chronological record of material decisions affecting the Spigot Tyr
 
 # Spigot Tyrant Design Log
 
+## 2026-08-14 — Opt-out combat protection completed
+
+- Extended US-011 with bidirectional combat isolation between opted-out players and the Tyrant, Assassin, Fixer, or Tamer while the event is running.
+- Direct player attacks and player-fired projectiles are cancelled at highest event priority, and the attacker is told that the target has chosen not to participate in the Tyrant event.
+- Paused, unstarted, and unrelated combat remains ordinary Minecraft gameplay.
+- Verified both attack directions, every Tyrant-side class, projectile attribution, lifecycle gating, and unrelated combat with automated tests.
+
+## 2026-08-14 — Opt-out combat protection started
+
+- US-011 is reopened for test-first running-event combat isolation between opted-out players and the Tyrant or Tyrant-side class holders.
+- Paused and unstarted gameplay remains ordinary Minecraft combat; blocked direct and projectile attackers receive a concise Tyrant event participation message.
+
 ## 2026-08-14 — Tamer completed
 
 - Completed US-007 with the no-cooldown owner-bound Tamer's Lead, server-generated entity snapshots, durable capture IDs, and one bound Captured Mob item per entity.

design/user-stories/us-011-inform-and-manage-participation.md

@@ -20,6 +20,11 @@ As a **player**, I want to understand my status and control my eligibility so th
 - [x] A player cannot opt back in until seven days have elapsed by default.
 - [x] The opt-out duration is configurable, uses unpaused elapsed time, and survives restart.
 - [x] Participation commands are idempotent and clearly report current status and remaining time.
+- [x] While the event is running, damage is cancelled when the Tyrant or an Assassin, Fixer, or Tamer attacks an opted-out player.
+- [x] While the event is running, damage is cancelled when an opted-out player attacks the Tyrant or an Assassin, Fixer, or Tamer.
+- [x] Cancelled attackers are told that the target has chosen not to take part in the Tyrant event.
+- [x] Protection covers direct player attacks and player-fired projectiles without changing unrelated combat.
+- [x] Participation combat protection does not apply while the event is paused or not started.
 
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