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.

0 files changed, 0 insertions, 0 deletions