- Add memoryEnabled boolean setting to core types and default settings
- Add Memory section toggle to SettingsModal dashboard UI
- Integrate memoryEnabled check in executor and triage engine prompts
- Add tests for settings UI, executor prompt behavior, and triage prompt behavior
- Update SettingsModal section count test for the new Memory section
- Change export filename from 'kb-settings' to 'fusion-settings' in SettingsModal
- Add comprehensive tests for settings export functionality including filename branding
- Remove stale dashboard-footer-mobile-layout test and unused App test
- Fix minor CSS and README cleanup