fix(mobile): improve mobile UI for kanban, group chat and page headers (#562)

- Fix kanban loading spinner flickering on auto-refresh (silent mode)
- Fix group chat room-list transparent background on mobile
- Fix group chat sidebar auto-opening on mobile entry
- Fix page-header title overlapped by hamburger button on mobile
- Move hamburger button position to top: 10px
- Add changelog note about upgrading hermes-agent for kanban support
- Add i18n translations for all 8 locales

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

packages/client/src/data/changelog.ts

@@ -19,6 +19,7 @@ export const changelog: ChangelogEntry[] = [
       'changelog.new_0_5_15_8',
       'changelog.new_0_5_15_9',
       'changelog.new_0_5_15_10',
+      'changelog.new_0_5_15_11',
     ],
   },
   {