Add responsive 2-column layout for the encounters page:
- Desktop (lg, ≥1024px): Encounters on left, team in sticky right sidebar
- Mobile/tablet: Keep current stacked layout
The sidebar scrolls independently when team exceeds viewport height.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Local GoTrue signs JWTs with HS256, but the JWKS endpoint returns an
empty key set since there are no RSA keys. Fall back to HS256 shared
secret verification when JWKS fails, using SUPABASE_JWT_SECRET.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
