Normalize admin host page dialogs to match design system pattern:
border + shadow only, no colored gradient strips. Align animation
timing and shadow to reference components (DestroyDialog, etc).
Sidebar and AdminSidebar were re-instantiated on every page navigation
(17 pages total), causing unnecessary DOM teardown/rebuild and redundant
localStorage reads. Now each lives in its respective +layout.svelte as a
single persistent instance.
Also adds onDestroy cleanup for leaked timers (settings, team, login RAF
loop) and CSS containment on <main> to isolate layout recalculations.
- Frontend: BYOC hosts page (/dashboard/byoc) with register/delete flows,
shimmer loading, pulsing online status, animated token reveal checkmark
- Frontend: Admin section (/admin/hosts) with platform + BYOC tabs, stat
pills, skeleton loading, slide-in animations for new rows
- Frontend: AdminSidebar component with accent top bar and admin pill badge
- Frontend: BYOC nav item shown only when team.is_byoc is true (derived
from teams store, not JWT); disabled for members
- Frontend: Admin shield button in Sidebar, visible only to platform admins
- Backend: is_admin in JWT claims + requireAdmin middleware (DB-validated)
- Backend: is_byoc added to teamResponse so frontend derives visibility
from fresh team data rather than stale JWT fields
- Backend: SetBYOC admin endpoint (PUT /v1/admin/teams/{id}/byoc)
- Backend: Admin hosts list enriches BYOC entries with team_name
- Host agent: load .env file via godotenv on startup
