New `bincio sync-garmin` command mirrors sync-strava: discovers all users
with garmin_creds.json, refreshes cached garth OAuth2 session, imports new
activities, and optionally POSTs to the rebuild endpoint.
systemd timer fires every 3h offset by 1h30m from Strava to avoid
simultaneous rebuilds. Status written to _garmin_sync_status.json per user.
- Add bincio sync-strava command: headless multi-user Strava sync
designed for systemd timer. Discovers users via strava_token.json,
skips users without their own strava_credentials.json, respects
Strava visibility (only_me → unlisted). Treats 404 stream errors as
no-GPS activities rather than retrying every run.
- Add deploy/systemd/bincio-sync.{service,timer}: runs every 3 hours,
Persistent=true to catch up after downtime.
- Add POST /api/internal/rebuild: webhook for sync timer to trigger
site rebuild, authenticated via X-Sync-Secret header.
- Add suspended column to users table with auto-migration on open_db.
Suspended users are blocked at login and session lookup (covers both
activity site and wiki, which share instance.db).
- Add POST /api/admin/users/{handle}/suspend|unsuspend and
DELETE /api/admin/users/{handle}/account endpoints.
- Admin panel: Suspend/Unsuspend toggle, Del account button, suspended
badge on user row.