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>
Replaces the config.json-backed flat profile model with the
Postgres-backed Workspace/Merkmal/Backend/Blueprint/Bereitstellungsvorlage
schema (migrations 0003-0005). /api/v1/activate now returns Bereitstellungsvorlage
templates instead of profiles, and a new POST /api/v1/templates/{id}/resolve
endpoint resolves a chosen template to a full Runtime Blueprint (workspace,
backend, resolved Merkmal->Ansible-role blueprints, and installation
directives), recording the resulting device assignment.
Removes the now-unused config.json and file-based device registry
directory in favor of the PostgreSQL-backed activation codes and
device tables.
