Lay the data-model foundation for the Fitbit/Pixel integration over the
Google Health API, mirroring the WHOOP provider. No OAuth, sync, or UI yet.
- Prisma: FitbitConnection (1:1 per user, encrypted access/refresh tokens)
and FitbitOAuthState models, two encrypted BYO-credential columns on User,
and FITBIT appended to the MeasurementSource enum. Migration
0117_v1120_fitbit_integration is additive only — one enum value plus two
tables and two nullable columns, no new MeasurementType (every launch
metric maps onto an existing type).
- Wire the two new encrypted columns and the FitbitConnection token columns
into scripts/rotate-encryption-key.ts.
- FITBIT touchpoints: the read measurementSourceEnum (not the writable set),
the DEFAULT_SOURCE_PRIORITY and workout-source ladders, the sources-section
label map, the IntegrationKey union plus its display name, and a
fitbit()/fitbitStatus() query-key pair. The source-rank SQL and read-tier
collapse pick FITBIT up from the ladders with no code change.
- Add the FITBIT source label to all six locale bundles and regenerate the
OpenAPI contract so the source enum carries FITBIT for the iOS decoder.