0.2.7-alpha1

Changelog

· 25f7374 chore: update EiluneKit route params
· f88d44e fix: require node 0.2.3 for self update
· 53dd7ba style: refine node manager layout
· 073fb90 style: refine system settings layout
· b4b89fb refactor: split version channel latest selection
· 9689fb9 feat: add Dash self update management
· e81edc5 feat: add Dash update automation controls
· a763c7f docs: document updater trust boundary