Extract _haversine_m from the inline block in _gps_speed_kmh, add
_spatial_downsample (keep one sample per 10 m traveled, GPS haversine
primary / speed×Δt fallback, indoor activities unchanged), and wire it
into build_timeseries() after the 1 s dedup loop.
Add --downsample-timeseries migration flag to bincio render that applies
the same downsampling to existing stored timeseries files without
re-extracting from original FIT/GPX files.
Layout: map + charts stacked left, stats panel (2-col) on the right.
Cadence moved to last stat. Charts sit directly below the map.
Speed coloring: most FIT files don't record per-second speed, leaving
timeseries speed_kmh all-null and the hover link dead. Fix: derive speed
from consecutive GPS coordinates (haversine + 5-pt moving average) when
the device didn't record it. Add --backfill-speed render flag to retrofit
existing timeseries files.
- "unlisted" = not shown in the public feed, but GPS track, timeseries
and detail JSON are all accessible by direct URL (security by obscurity)
- "private" accepted as legacy alias everywhere (backward compat with
existing data on disk)
- New writes from Strava sync / ZIP upload / sidecar use "unlisted"
- Only "no_gps" now suppresses the GPS track
- isUnlisted() helper in format.ts used by all Svelte/Astro components
- SCHEMA.md and CLAUDE.md document the privacy model and the distinction
between "unlisted" and "no_gps"
Davide Scaini