So the eventual 1.x removal of the legacy admin paths can be data-driven (cut a
route only once it has gone quiet across real deployments), record usage of the
pre-/api paths without changing their behavior.
- New DeprecatedRouteMiddleware: after serving, counts the hit keyed by
"METHOD <route-pattern>" and logs a one-time warning per route pointing at the
/api equivalent. Wired onto the legacy /setup and /mgmt mounts only — NOT the
/api/* twins, NOT the externally-pinned OAuth callbacks, NOT the Stockholm
setup-wizard catch-all.
- Counts are exposed in the diagnostic export (deprecated_route_hits), so the
shared bundles show whether the old paths are still in use.
Legacy paths keep working unchanged. make test-http-client: 95 requests, 0
failed (the suite still exercises /mgmt directly and now emits the one-time
warnings). go test + golangci-lint clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Tobias GesellchenandClaude Opus 4.8
30c7599210