feat(simulation): sprint 10 — hub teleport, confrontation response, walk-away phase 2, gauntlet rooms 4-7, blocked_entities debug field

#491: PlayerAction::TeleportToHub — moves player to hub spawn, clears
dialogue/monologue/interaction buffer, Gauntlet-only with log warning.
#520: ConfrontationDelivered event — Tier 2 animation shift, relationship
state decrement (D-033), monologue spike emission.
#519: Walk-away Phase 2 — NPC animation shift + routine deviation on
dialogue exit (D-064).
#498: Four new Gauntlet rooms — Interaction Gallery, Fog Theater, Crowd
Plaza, Dialogue Room with constants and wiring.
#514: blocked_entities Vec<u64> on ObserverSnapshot, protocol v9.

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

server/src/perception/observation.rs

@@ -142,10 +142,8 @@ pub fn emit_observation_events(
         let pending_ids: Vec<crate::knowledge::types::StableId> =
             delay.pending().iter().map(|p| p.stable_id).collect();
         for sid in pending_ids {
-            if !visible_stable_ids.contains(&sid.0) {
-                if delay.cancel(&sid).is_some() {
-                    tracing::debug!("Cognitive delay cancelled: stable_id={} left LOS", sid.0);
-                }
+            if !visible_stable_ids.contains(&sid.0) && delay.cancel(&sid).is_some() {
+                tracing::debug!("Cognitive delay cancelled: stable_id={} left LOS", sid.0);
             }
         }
     }