Activity sync:
- First sync (no last_sync_at) now fetches from 2010-01-01 instead of -30 days,
importing the full account history rather than only the last month
- Pre-download dedup: check existing activities by start_time before downloading;
stamps garmin_activity_id on the match so subsequent syncs take the fast path
- process_activity_file stamps garmin_activity_id on duplicate detection for
the same reason (covers activities imported via bulk export)
- 0.5 s sleep between downloads to avoid Garmin API rate limiting
Wellness sync:
- First sync now covers last 90 days instead of 7
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
owain
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