Thomas Stallinger
341ef92a7a
Adds POST /api/v1/agent/bootstrap (issues a hashed agent secret for a device) and POST /api/v1/agent/checkin (Bearer-authenticated, resolves the device's assigned blueprints via its Bereitstellungsvorlage and returns them alongside the ansible-content repo URL and poll interval). Migration 0006 adds the backing columns on devices (agent_secret_hash, agent_secret_issued_at, agent_last_checkin). This was implemented and verified end to end (activate -> resolve -> bootstrap -> checkin, plus a full QEMU agent test) in an earlier session but never committed to this repo, even though it has been running in production on anode since. Committing now to close that gap before building on top of it. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>