Extract climb detection into a dedicated climb package

Move climb detection, slope, and Cotacol scoring out of ride into a new
climb package that operates on a geometry-only Route (distances, elevations,
coords). Ride embeds climb.Route and keeps its timing and telemetry columns.

- climb.Detect returns []DetectedClimb (Climb + ride-absolute Start).
- Climb owns its sliced geometry; indices are local, with Start reported at
  the detection boundary for absolute position.
- Detected bounds use core.Interval; freeRegions claim suppression fixed.
- ride no longer builds slices: ClimbFromDist/ClimbFromIndexes/climbFrom and
  ride.Climb/Interval/Range are removed; rideanalysis, mountain_pass MatchClimb,
  and web views are rewired to climb types.
- New internal/routetest builds climb.Route from the ride DSL; ridetest reuses
  it and adds timestamps and telemetry.
- Tests moved to climb (synthetic detection and difficulty) and kept in ride
  for GPX-example integration; ride.comparison detection coverage retained.
- mountain_pass.nearestCrossing now reuses geo.Nearest.

1 files changed, 1 insertions, 1 deletions

diff --git a/ride/moving_time.go b/ride/moving_time.go
index 2ab07bf..62deb24 100644
--- a/ride/moving_time.go
+++ b/ride/moving_time.go
@@ -19,7 +19,7 @@ const movingTimeMaxGap = 120 * time.Second
 // Bench (104 rides, `-backtest`, distance >= 10 km, moving/elapsed ratio >= 0.8):
 // absMean 0.4%, stderr 0.1, p50 0.2, p75 0.4, p90 0.8, p95 1.4, p99 2.9.
 func MovingTime(r Ride) time.Duration {
-	return movingTime(r.timestamps, r.distances, r.powers, r.cadences, movingTimeMinSpeedMps, movingTimeMaxGap)
+	return movingTime(r.timestamps, r.Distances, r.powers, r.cadences, movingTimeMinSpeedMps, movingTimeMaxGap)
 }
 
 func movingTime(timestamps []time.Time, distances, powers, cadences []float64, minSpeedMps float64, maxGap time.Duration) time.Duration {