Kyle Isom 714320c018 Add edge routing and health check RPCs (Phase 2) ...

New agent RPCs for v2 multi-node orchestration:

- SetupEdgeRoute: provisions TLS cert from Metacrypt, resolves backend
  hostname to Tailnet IP, validates it's in 100.64.0.0/10, registers
  L7 route in mc-proxy. Rejects backend_tls=false.
- RemoveEdgeRoute: removes mc-proxy route, cleans up TLS cert, removes
  registry entry.
- ListEdgeRoutes: returns all edge routes with cert serial/expiry.
- HealthCheck: returns agent health and container count.

New database table (migration 4): edge_routes stores hostname, backend
info, and cert paths for persistence across agent restarts.

ProxyRouter gains CertPath/KeyPath helpers for consistent cert path
construction.

Security:
- Backend hostname must resolve to a Tailnet IP (100.64.0.0/10)
- backend_tls=false is rejected (no cleartext to backends)
- Cert provisioning failure fails the setup (no route to missing cert)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-02 13:13:10 -07:00

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