chore(meta): update changelog

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

CHANGELOG.md

@@ -6,6 +6,19 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Added
+- ContentType::Factual — lines with numbers, denials, causal chains bypass LLM and serve base text directly (#650, D-138)
+- Voice pipeline observer integration — enrichment systems rewrite dialogue/conversation text with voiced versions before snapshot assembly (#652)
+- SQLite settings storage — per-player persistent settings via rusqlite (bundled), IPC protocol v20 with ChangeSettings/RequestAllSettings/DeleteSetting commands (#627)
+- Composable behavior engine — three-layer action+modifier+context primitives replace flat culture×zone×role behavior strings (#633, D-139, Q-057 resolved)
+- Stronger few-shot examples for Friendly and RoutineDeviation tells (#651)
+
+### Removed
+- v0.1 content loading system — server/src/content/ module (8200 lines), tooling/content-converter/, tooling/validate-content, content-ron/, content/_meta/ (#655, D-122)
+
+### Changed
+- Protocol version bumped to 20 — ObserverSnapshot includes settings_response field (#627)
+
 ## [v0.1.25] — 2026-03-07
 
 ### Fixed