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/bridge/text_renderer.rs

@@ -318,6 +318,7 @@ mod tests {
             state_hash: None,
             sim_errors: vec![],
             debug_response: None,
+            current_ticker: None,
         }
     }
 
@@ -457,6 +458,7 @@ mod tests {
             state_hash: None,
             sim_errors: vec![],
             debug_response: None,
+            current_ticker: None,
         };
         let text = format_snapshot_text(&snap);
         assert!(text.contains("Tick 0"));