Locks the workout-ingest contract before the v1.5 iOS-Swift session.
v1.4.25 ships no UI surface for workouts beyond the VO2-max tile
landing in W8d.5; the table layout is in place so the iOS DTO can
be generated against it and the v1.4.26 XML / Strava workers can
target the same shape.
Schema highlights (full rationale in
.planning/research/w8d-implementation-outline.md §4):
- Typed columns for every hot-path metric (sport, duration, energy,
distance, HR avg/max/min, steps, elevation, pause). HKWorkout-
shaped 1:1, so the iOS DTO needs zero glue. Withings v2/measure
getworkouts maps cleanly modulo `hr_zone_0..3` (-> metadata).
- Open `metadata Json?` blob for the long tail (HK metadata bag,
Withings HR-zone breakdown, device bundle id).
- `sportType` is TEXT, not a Postgres enum — Apple alone carries
70+ HKWorkoutActivityType values and the tail only grows. Adding
a new sport is a Zod refinement, never a Postgres migration.
- Composite unique `(userId, source, externalId)` for ingest dedup;
Postgres NULL-distinct semantics keep manual entries non-colliding.
- WorkoutRoute is 1:1 with Workout, FK on workoutId with cascade
delete. Geometry is GeoJSON LineString in JSONB (no PostGIS
dependency — v1.4.20 set the same precedent for correlations).
Per-sample timestamps + speed/HR ride in `sample_timestamps` and
stay parallel to the coordinate array.
New module src/lib/validations/workout.ts:
- workoutSportTypeEnum: 20-member roster covering ≥98% of typical
workouts in the open-source corpora referenced in the outline.
- geoJsonLineStringSchema: RFC 7946 §3.1.4 with optional altitude
component; ≥2 points, lon ∈ [-180, 180], lat ∈ [-90, 90].
- workoutRouteSamplesSchema: parallel-array timestamp + speed + HR.
- createWorkoutSchema: full HKWorkout-shaped payload Zod for the
eventual POST /api/measurements/batch?kind=workout endpoint.
13 unit tests cover the happy path (Apple Health full payload), the
minimal-payload defaults, sport-type rejection, GeoJSON validation
(Point rejected, single-point LineString rejected, OOB coordinates
rejected), and route-sample edge cases. No ingest route ships in
v1.4.25 — the schema is the contract.
