Wahoo's Cloud API exposes POST /v1/routes (scope routes_write), which
syncs to the Wahoo App and to ELEMNT/BOLT/ROAM head units. This change
proposes the push pipeline: GPX -> FIT Course (new @trails-cool/fit
package) -> Wahoo, with sync_pushes for idempotency, an explicit
re-auth flow for the new scope, and a "Send to Wahoo" affordance on
the route detail page. Read-only Wahoo import is unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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