domain routes in the sidecar: nodes with per-route approval done as a
read-modify-write (headscale's approve_routes replaces the whole set),
users enriched with node counts, and pre-auth keys.
pre-auth key secrets are revealed by call path, not by inspecting the
value. headscale masks keys created since 0.28, but returns older
plaintext ones in full from the list endpoint for backwards
compatibility, so listing would otherwise ship live secrets into the
browser's query cache. the list always nulls the secret; only creation
reveals it, and the ui shows it once with a copy affordance.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
