v0.6.2: order sources by most recent message (recency)

- Sidebar sources ordered by Max(created_at) desc instead of alphabetically;
  "All sources" stays pinned at top (rendered separately).
- Live updates move a source to the top when it gets a new message, so the
  recency order holds without a reload.

152 tests pass; JS re-validated with node --check.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -9,6 +9,13 @@ former name, "Daybook".)
 
 _Nothing yet._
 
+## [0.6.2] — 2026-09-07
+
+### Changed
+- Source sidebar is now ordered by **most recent message** (Telegram-style)
+  instead of alphabetically; "All sources" stays pinned at the top. Live
+  updates move a source to the top when it receives a new message.
+
 ## [0.6.1] — 2026-09-07
 
 ### Changed
@@ -214,7 +221,8 @@ First tagged release.
 - Dockerised (Gunicorn + whitenoise), SQLite, `git`-based deploy with a
   runbook (`deploy/cloud_agent_deploy.md`) and health check.
 
-[Unreleased]: https://git.cygnus.systems/peter/daybook/compare/v0.6.1...HEAD
+[Unreleased]: https://git.cygnus.systems/peter/daybook/compare/v0.6.2...HEAD
+[0.6.2]: https://git.cygnus.systems/peter/daybook/compare/v0.6.1...v0.6.2
 [0.6.1]: https://git.cygnus.systems/peter/daybook/compare/v0.6.0...v0.6.1
 [0.6.0]: https://git.cygnus.systems/peter/daybook/compare/v0.5.1...v0.6.0
 [0.5.1]: https://git.cygnus.systems/peter/daybook/compare/v0.5.0...v0.5.1