Tame the deadcode gate and remove dead web helpers

Run deadcode with -test and without the vendored node_modules package so the
check reports only genuinely unreachable code instead of test-only helpers and
vendored functions. Remove the three web helpers it still flagged (formatBikeType,
formatRideType, dataQualityURL) that had no callers. Apply the go fix
modernizations the check gate performs (range-over-int loops and embedded-field
composite literals) that the gate had rewritten in the working tree.

6 files changed, 8 insertions, 28 deletions

diff --git a/climb/detection.go b/climb/detection.go
index 1efe1c5..9269c2f 100644
--- a/climb/detection.go
+++ b/climb/detection.go
@@ -127,7 +127,7 @@ func bestClimbBetween(distances, elevations []float64, minSlope float64) (core.I
 
 	bestDetectionScore := climbDetectionScore(distances, elevations)
 	best := core.NewInterval(0, end)
-	for i := 0; i < end; i++ {
+	for i := range end {
 		detectionScore := climbDetectionScore(distances[i:end], elevations[i:end])
 		if detectionScore > bestDetectionScore {
 			best.Start = i
@@ -155,7 +155,7 @@ func bestClimbBetween(distances, elevations []float64, minSlope float64) (core.I
 	// Classic best too gentle: re-segment into the best qualifying sub-segment.
 	bestDetectionScore = math.Inf(-1)
 	best = core.NewInterval(-1, -1)
-	for i := 0; i < end; i++ {
+	for i := range end {
 		for j := i + 1; j <= end; j++ {
 			if Slope(distances[i:j+1], elevations[i:j+1]) < minSlope {
 				continue
diff --git a/mise.toml b/mise.toml
index 8458570..eda8c5e 100644
--- a/mise.toml
+++ b/mise.toml
@@ -29,7 +29,7 @@ run = [
   "go vet ./...",
   "go build ./...",
   "go test ./...",
-  "go tool deadcode ./...",
+  "go tool deadcode -test $(go list ./... | grep -v '/node_modules')",
 ]
 
 [tasks.build]
diff --git a/ride/ride.go b/ride/ride.go
index 8e8bf95..77a8e14 100644
--- a/ride/ride.go
+++ b/ride/ride.go
@@ -162,11 +162,9 @@ func FromColumnsWithMetrics(distances []float64, elevations []float64, coords []
 
 func fromColumns(distances []float64, elevations []float64, coords []geodist.Coord, timestamps []time.Time, heartRates, cadences, powers []float64) Ride {
 	ride := Ride{
-		Route: climb.Route{
-			Distances:  distances,
-			Elevations: elevations,
-			Coords:     coords,
-		},
+		Distances:  distances,
+		Elevations: elevations,
+		Coords:     coords,
 		timestamps: timestamps,
 		heartRates: heartRates,
 		cadences:   cadences,
diff --git a/rideanalysis/analysis.go b/rideanalysis/analysis.go
index a9cf93d..883d72c 100644
--- a/rideanalysis/analysis.go
+++ b/rideanalysis/analysis.go
@@ -72,11 +72,11 @@ func Analyze(parsed ride.Ride, passes []mountain_pass.MountainPass, officialClim
 
 // routeClimb returns the climb segment of route covered by interval.
 func routeClimb(route climb.Route, interval core.Interval) climb.Climb {
-	return climb.Climb{Route: climb.Route{
+	return climb.Climb{
 		Distances:  route.Distances[interval.Start : interval.End+1],
 		Elevations: route.Elevations[interval.Start : interval.End+1],
 		Coords:     route.Coords[interval.Start : interval.End+1],
-	}}
+	}
 }
 
 func analyzedClimb(segment climb.Climb, interval core.Interval, name string, officialID int64) AnalyzedClimb {
diff --git a/web/categories.go b/web/categories.go
index 4077092..a76fa1c 100644
--- a/web/categories.go
+++ b/web/categories.go
@@ -67,20 +67,6 @@ var rideTypeLabels = map[ride.RideType]string{
 	ride.RideTypeTransport: "Transport",
 }
 
-func formatBikeType(value ride.BikeType) string {
-	if label, ok := bikeTypeLabels[value]; ok {
-		return label
-	}
-	return string(value)
-}
-
-func formatRideType(value ride.RideType) string {
-	if label, ok := rideTypeLabels[value]; ok {
-		return label
-	}
-	return string(value)
-}
-
 func formatCategoryOrEmpty(value string) string {
 	if value == "" {
 		return "—"
diff --git a/web/data_quality.go b/web/data_quality.go
index 74e84af..562ecf8 100644
--- a/web/data_quality.go
+++ b/web/data_quality.go
@@ -86,10 +86,6 @@ func dataQualityNotice(r *http.Request) string {
 	return ""
 }
 
-func dataQualityURL() string {
-	return "/data-quality"
-}
-
 type DataQualityPageData struct {
 	Items  []RideView
 	Total  int