D-120 PROPOSED: static-services addressing for compose /24s; re-IP plan drafted ...

Office1's persistent services (office1-netbox .201, office1-tailscale .202) sit in
MAAS's deployed-node band -- addressed like ephemeral compute nodes, by MAAS
auto-assign default, not by design. They are NOT in the DHCP dynamic range
(.100-.200), so no collision -- but no static-services sub-layout was ever ratified
for the /24 (D-115 left it "MAAS DHCP/PXE").

D-120 (PROPOSED) defines a functional band layout for EVERY MAAS-managed compose /24
(Office1 + the DCs, which inherit it):
  .1        gateway (site containment VM)
  .2-.49    STATIC site services (MAAS static-assign, outside the dynamic range)
  .50-.99   reserved/spare
  .100-.200 MAAS dynamic (unchanged)
  .201-.254 deployed nodes (unchanged)
Proposed Office1 addresses: netbox .201->.10, tailscale .202->.11. Recommends
option (a): adopt + re-IP Office1 now, so the DC template is clean. Addresses AWAIT
operator ratification.

Re-IP plan: runbooks/dc-dc-office1-service-reip.md -- gated mutation on two running
services, honest PENDING VERIFICATION markers for the MAAS static-assign CLI and the
netbox-docker ALLOWED_HOSTS / tailscale re-assert (cannot confirm without the
operator-held box keys). Cascades to 20 repo refs incl. SANDBOX_HOSTS .201 in the
two pynetbox importers + their tests. NOT executed.

The layout belongs IN NetBox (the IPAM authority deciding where NetBox lives) --
recorded via the sandbox loop, not prose.

repo-lint 0 fail. No live services touched -- this is a proposal + plan.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>