The phone no longer writes estimated Health workouts: the watch, which
runs the live session, is the sole recorder. Replaces WorkoutHealthWriter
with a WorkoutHealthDeleter that only removes a legacy phone-estimate
workout when its record is deleted here, drops the MET calorie table and
the phone's write/read Health scopes, and keeps phoneEstimate decodable
for existing documents.
Claude-Session: https://claude.ai/code/session_01HJDQQDA9QdP8zByg43H5v3
Watch sessions now run an HKLiveWorkoutBuilder: heart rate and active
energy are collected live (shown in an in-workout HUD), saved to Health
as a real HKWorkout on completion, and carried back to the phone as
WorkoutMetrics on the workout document. Phone-only workouts get an
estimated Health workout (MET x bodyweight x duration) after a 10s
debounce that a late-arriving watch session cancels; a launch sweep
backfills workouts completed within the last day. Dedupe is keyed on
metrics.healthKitWorkoutUUID plus the metrics source.
Splits gain an activity type (strength, functional, HIIT, core, cardio,
cycling) that categorizes the Health workout and picks the MET value.
A post-workout summary sheet (duration, calories, avg/max HR, HR zones,
total volume) fills in live and is also shown on completed workouts.
Weights can now display in lb or kg (display-only relabel), synced to
the watch over the existing application context.
WorkoutDocument schema 1->2 (metrics are irreplaceable, so older apps
must quarantine rather than strip them); cache schema 2 rebuilds the
SwiftData store with the new metric columns. Deleting a workout in the
app intentionally leaves its Health record in place.
- Redesign the watch app into an active-workout runner: a root gate shows the
in-progress workout's exercises or prompts to start one on iPhone, and each
exercise runs as a horizontally-paged HIIT cycle (count-up work, count-down
rest with final-three-second haptics + auto-advance, One More / Done on the
last set). Replaces the old history list.
- Add a configurable rest-between-sets duration in iPhone Settings (default 45s),
synced to the watch over WatchConnectivity.
- Launch the watch app into the session when a workout starts on the phone via
HealthKit (startWatchApp); the watch runs an HKWorkoutSession for foreground
runtime and ends it when the workout finishes. Adds the HealthKit entitlement +
Health usage strings on both targets and WKBackgroundModes on the watch.
Claude-Session: https://claude.ai/code/session_018gg69MaUetDNzWzBXisfMV
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