chore(meta): update changelog

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

CHANGELOG.md

@@ -6,6 +6,27 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Added
+- `PROJECT_STATE.md` at repo root — shared project state referenced by all 18 agent briefings
+
+### Changed
+- Amended 7 stale D-records with supersession notes (D-012, D-035, D-044, D-061, D-086, D-090, D-119)
+- Closed 4 resolved scope questions (Q-002, Q-004, Q-005, Q-007)
+- Fixed questions.md index (was 61 questions, actually 96 — 33 architecture Qs missing from index)
+- All 18 briefings reference `PROJECT_STATE.md` instead of duplicating project state boilerplate
+- Aligned sprint-start severity policy with pr-review (no suggestion tier — every comment actionable)
+
+### Removed
+- `GEMINI-SCAN.md` one-off scan artifact
+- 6 dead `db/connectors/` permission entries from settings.local.json
+- Stale "v0.2 direction" and "Sprint 25 critical path" references from all briefings
+- `worktree-update` skill template from whatsinagame kit
+
+### Fixed
+- D-061 dialogue max-width: corrected from 640px to 1200px (per D-076)
+- DEVOPS.md and stig briefing: gdlint no longer "pending setup"
+- `{team_scope_dirs}` dangling placeholder in sprint-start resolved
+
 ## [v0.1.31] — 2026-04-05
 
 ### Added