Add Strava as a per-user BYO-OAuth workout source, mirroring the shipped
WHOOP/Oura/Polar pattern. Strava caps every new app at single-player mode, so
each self-hoster registers their own app and pastes the client id/secret into
Settings (falling back to a shared env app). Strava is a workout source only —
it exposes no daily metrics and no training-depth analytics are derived.
- Schema (migration 0233): per-user encrypted client id/secret + access/refresh
tokens, plaintext athlete id, incremental cursor, and backfill marker on
`User`; `STRAVA` added to `MeasurementSource`.
- Token model follows Oura's reactive-refresh-on-401 with a compare-and-set on
the stored refresh ciphertext, because Strava rotates its refresh token on
every refresh.
- Client over safeFetch: authorization-code + refresh, activity list + budget-
aware per-activity detail (for calories/HR), honouring the 200/15min cap; each
activity maps to one `Workout` row. Activity name/description stay in metadata
as data, never surfaced or interpolated.
- Dedup reuses the existing source-agnostic two-layer picker: `STRAVA` slots
into the workout ladder below the device-native wearables and above
MANUAL/IMPORT, so an Apple-Watch + Strava twin collapses to one canonical row.
- Poll-cohort hourly sync (:17) + self-converging boot backfill, wired into the
integration-sync registrar. Webhook deferred.
- OAuth routes (connect/callback/credentials/disconnect/status/test) with signed
state, cross-account re-auth rejection, and a surgical `www.strava.com`
connect-src gated to the Strava surfaces.
- Settings card + consolidated status envelope entry; env + compose whitelist;
i18n across all six locales.
- Garmin: no direct connector is possible (business-partner-only). Add
docs/integrations/garmin.md documenting the Apple Health / Google Health
Connect path and Garmin's withheld proprietary scores, cross-linked from both
platform docs, plus a non-connector info note in the Connections panel.
Regenerate docs/api/openapi.yaml for the new `STRAVA` MeasurementSource value.
One-shot prettier pass so the new format:check gate starts from a clean
baseline. Formatting only — no behaviour change. Generator-owned and
vendored artifacts stay untouched via .prettierignore.
Connect a Polar account over AccessLink v3: an authorization-code OAuth
flow (shared app from POLAR_CLIENT_ID / POLAR_CLIENT_SECRET) backed by a
stateless HMAC-signed state token doubling as an httpOnly cookie for CSRF.
The callback verifies the signature, expiry, provider binding, and the
byte-exact cookie match, then encrypts the access token plus member id onto
the user row.
An hourly poll-cohort job maps Nightly Recharge recovery, sleep stages,
and daily activity to canonical measurements tagged source POLAR, idempotent
on (userId, type, source, externalId). The recovery band feeds RECOVERY_SCORE
through the canonical ladder, which now ranks native readiness above the
computed proxy. Settings gains a connect / disconnect card. Tokens are never
logged or returned; every egress goes through safeFetch.
Marc-André Bombeck