New POST /api/v1/host-enroll (handleHostEnroll): X-Retrieval-Password authed,
body {customer_id} -> {host_id, api_key}. Mint-once-reuse (201 first, 200
reuse) so re-running the host-bootstrap never orphans a running agent's key;
auth checked before any mint. Backed by new Store.GetHostByCustomer
(ORDER BY updated_at DESC LIMIT 1, idx_hosts_customer).
GET /config/{id} and global-key POST /admin/hosts left untouched. Exact-match
route (path == "/host-enroll") to avoid the /hosts/ prefix collision.
Tests: host_enroll_test.go (mint/reuse/401-no-mint/404/400) + GetHostByCustomer
store test; companion red-proof verified always-mint fails the reuse assertion.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TtXesNa2LGbMmE4DNL6SE7
Empirically validates the composed Day-0 chain against the LIVE hub: host
mint (POST /admin/hosts), agent host-auth via the real internal/hub client
(host-report + FetchDesiredState), and controller config-pull
(GET /config/{id} + X-Retrieval-Password). All links + wrong-cases pass.
Option A works end-to-end with zero new code; option C (single-secret enroll)
feasible + recommended for cutover. Throwaway customer/host cleaned up.
No production code, no version bump (spike).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TtXesNa2LGbMmE4DNL6SE7