Re-entering an in-progress exercise on the watch now computes its landing
(page + wall-clock anchor) from the log's durable timestamps in init —
mid-set resumes the stopwatch from startedAt, mid-rest lands on the rest
page with the countdown continuing and auto-advancing at the true
boundary, and a spent rest anchors the next set at the rest's computed
end. Timestamps are clamped to now against peer clock skew; legacy logs
without them keep the old first-unfinished-set behavior. broadcastLive
forwards the resume anchor so a mirroring phone's timer lines up.
Claude-Session: https://claude.ai/code/session_01H8VxUX4ckjU3vRF5M4L5FV