Ullrich Schäfer 4536470eb9 feat(gpx): post-parse timestamp repair ... Task group 3 of gpx-parser-robustness. Timestamps were passed through raw; a partially-broken time channel from a flaky recorder silently shrank moving time and skewed start-time derivation. New pure `timestamp-repair.ts` applied per segment after parsing: - validity = Date.parse yields a finite epoch; - a segment with no valid timestamps is left untouched (untimed track); - >50% invalid → drop all the segment's timestamps (noise, not signal); - otherwise → linearly interpolate invalid runs between valid neighbours (by point index), leading/trailing runs clamp to the nearest valid timestamp; only repaired points are rewritten as ISO 8601, valid points keep their original string. Monotonicity intentionally not enforced (movingTime already skips non-positive intervals; reordering would be fabrication). No GpxData shape change. Wired into parseTracks output in parse.ts. Verified: gpx typecheck + lint clean, 81/81 tests pass, journal + planner typecheck unchanged. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>		2026-07-14 00:10:57 +02:00
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specs/gpx-parsing	docs+openspec: prior-art research (Organic Maps, Endurain, wanderer) and 15 proposals	2026-07-06 07:23:00 +02:00
.openspec.yaml	docs+openspec: prior-art research (Organic Maps, Endurain, wanderer) and 15 proposals	2026-07-06 07:23:00 +02:00
design.md	docs+openspec: prior-art research (Organic Maps, Endurain, wanderer) and 15 proposals	2026-07-06 07:23:00 +02:00
proposal.md	docs+openspec: prior-art research (Organic Maps, Endurain, wanderer) and 15 proposals	2026-07-06 07:23:00 +02:00
tasks.md	feat(gpx): post-parse timestamp repair	2026-07-14 00:10:57 +02:00