v0.7.5

Fixed

• FIT parsing no longer mistakes vendor-specific messages for GPS records, producing garbage coordinates/altitude/heart rate on real files; messages it still can't decode are now reported via diagnostic instead of silently skipped.
• GPX trackpoints missing <time> are no longer dropped; they keep an epoch timestamp instead, now reported via a diagnostic like an invalid timestamp already was.
• TCX laps with more than one <Track> (pause/resume) no longer read only the first one.
• GeoJSON/CSV timestamps without a UTC offset are now treated as UTC instead of local time, matching GPX/TCX.
• FIT fields 78/120 (altitude, grade, balance, ebike assist) no longer map to the wrong field numbers.
• load()/convert()/convertAndExport() no longer crash on a Stream<List<int>> source with isolates on (the default).
• ActivityConverter.convert() no longer drops repair diagnostics.
• trimInvalid() no longer drops laps on activities with no surviving GPS points (indoor/trainer).
• crop()/deleteRange()/insertPause()/removePause() now carry events/lengths/sets forward, like shiftTime() already did.
• sortAndDedup()/updatePoint() no longer pick a random winner among duplicate timestamps; sorting is stable now.
• splitBySport() no longer bleeds points between sports on brick workouts (run/bike/run); splitting is per-lap now.
• flattened() no longer gives every lap the primary track's sport; each lap keeps its own now.
• GeoJSON no longer drops channel data (HR, power, etc.): export writes it as coordinateProperties.channels, and MultiLineString parsing now collects it per line too.
• GeoJSON no longer smears one feature property across every point; it's kept as metadata now.
• GPX export no longer drops anything outside the usual 9 channels; they're written as extra gpxtpx: tags now.
• TCX export now reports lossy.channels_dropped instead of dropping a channel with no warning.
• GeoJSON multi-track FeatureCollections no longer keep only the first track; the rest are kept in additionalTracks now.
• GeoJSON parsing now also reads coordTimes (togeojson/Mapbox), not just our own coordinateProperties.times.
• Duplicate, out-of-order, or pre-1990 timestamps no longer silently drop points, misplace lap boundaries, wrap FIT timestamps to a garbage future date, or reorder records; adjustments are reported via diagnostics now.
• FIT's outlier filter no longer drops an entire legitimate track, only a stray bad point, when multiple tracks get merged into one FIT file; it only drops small (≤10-point) clusters now.
• FIT laps with missing start_time/total_elapsed_time or a corrupted/reordered timestamp no longer get dropped or produce a negative duration; a start is inferred, or the duration is clamped to zero, with a diagnostic either way.
• convert()/export() no longer only normalizes/orders the primary track: multi-track sources are flattened first for single-track formats now, and GPX normalizes additionalTracks directly instead of leaving them untouched.
• One bad feature in a GeoJSON FeatureCollection no longer wipes the whole thing; only that feature is skipped now.
• TCX multi-sport export no longer drops the point sitting on a sport boundary.
• GeoJSON total_calories/total_steps/device_manufacturer are no longer dropped on parse.