feat(simulation): character archetype, tell escalation, and news ticker (#587, #589, #591)

- Add character_archetype to StartupMessage with serde default (Detective)
- Bump PROTOCOL_VERSION to 19
- Add escalate_tells_on_activation() and expire_routine_deviations() systems
- RoutineDeviation inserted on triangle NPCs with 300-tick TTL
- Add TickerPool resource with deterministic SimRng rotation (200 ticks)
- Emit current_ticker in ObserverSnapshot when player is in bar zone
- Load ticker YAML from district content directories

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/npc/mod.rs

@@ -132,15 +132,25 @@ pub enum AnimationTier {
     Tier2,
 }
 
+/// Duration (ticks) a storyteller-escalated RoutineDeviation persists.
+/// 300 ticks = 30 game-minutes at 10 ticks/game-minute (D-031).
+pub const TELL_ESCALATION_DURATION_TICKS: u64 = 300;
+
 /// Tracks why and when an NPC's routine deviated from normal (D-064 Phase 2).
 ///
 /// Inserted when a player action causes an NPC to break from their scheduled
 /// behavior. Acts as a hook for the storyteller system and affects future
 /// interactions (e.g., second-approach dialogue differences).
+///
+/// `expires_at_tick`: tick at which this component should be removed.
+/// 0 means "never expires" (legacy default for old insertions).
 #[derive(Component, Debug, Clone)]
 pub struct RoutineDeviation {
     pub trigger: DeviationTrigger,
     pub tick: u64,
+    /// Tick at which this deviation expires (component removed by cleanup system).
+    /// Set to `tick + TELL_ESCALATION_DURATION_TICKS` for time-limited deviations.
+    pub expires_at_tick: u64,
 }
 
 /// What caused an NPC's routine deviation.
@@ -150,6 +160,8 @@ pub enum DeviationTrigger {
     WalkAway,
     /// Player delivered a confrontation (D-063).
     Confrontation,
+    /// Storyteller activated a triangle this NPC belongs to (#589, D-024 axis 9).
+    TriangleEscalation,
 }
 
 // ---------------------------------------------------------------------------

server/src/npc/tell_state.rs

@@ -247,6 +247,7 @@ mod tests {
         NpcRoutineDeviation {
             trigger: DeviationTrigger::WalkAway,
             tick: 100,
+            expires_at_tick: 500,
         }
     }