chore(meta): update changelog

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

CHANGELOG.md

@@ -6,6 +6,22 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Added
+- TileKind enum (Floor/Wall/Void/Restricted) on WalkabilityMap with per-tile type data alongside walkability (#576, D-094)
+- Location YAML tile format — hand-author tiles as string arrays (F/W/V/R characters), loaded into WalkabilityMap on production startup (#577)
+- Chunk streaming system — ChunkLoadRadius and cadence-gated load/unload around player position, v0.1 covers full district (#578, D-012)
+- EngagementRecord component — per-NPC observation time, conversation count, and monologue trigger count tracked by perception/dialogue/monologue systems (#570)
+- MovementHistoryBuffer resource — 3000-tick ring buffer of player positions with co-presence proximity query (#571)
+- Storyteller lifecycle rules — single activation per session, no concurrency, terminal resolution constants (#572)
+- Storyteller activation_pass() — gate/proximity/engagement scoring/routing/module selection/TriangleActivatedEvent on 10-tick cadence (#579)
+- Debug console server — 10 DebugCommandKind variants (AdvanceTicks, SkipToContamination, TeleportToPosition, InspectNpc, ListTriangles, etc.) with DebugResponsePayload on ObserverSnapshot (#580)
+
+### Fixed
+- LOS boundary walls — 1-tile wall margin beyond vision cone included in visible_tiles as BoundaryWall sector, walls at fog edge now render instead of bleeding into fog (#584)
+
+### Changed
+- PROTOCOL_VERSION bumped 17 → 18 (debug_response field on ObserverSnapshot, DebugCommand PlayerAction variant)
+
 ## [v0.1.22] — 2026-03-03
 
 ### Added