- App switcher: only show "Manage rApps" when there are actually
disabled modules or active restrictions. Move "Available to Add"
above "Remove" to prioritize adding. Eliminates duplicate module
listing when all modules are enabled.
- Shell: update app switcher on modules-changed event (was only
updating tab bar and folk-rapp, not the sidebar itself).
- SMTP: use space-agent@rspace.online as From for invite/approval
emails with proper envelope sender for DKIM alignment.
- Shell CSS: fix banner z-index, smooth header transition on banner.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>