GA-R5, before dependent work. Operator utterance: "Use both flags".
juju 3.6.27's own help assigns machine-targeting to --bootstrap-constraints
and model-defaulting to --constraints; the runbook and D-104's mechanism
sentence both name only --constraints. D-104 is NOT amended -- only the flag
implementing it is clarified. DOCFIX owed, recorded in the changelog.

Read-only gates, all on voffice1: selectors exit 0 (6 planes, 10 hosts);
credential gate outcome 1 of 3 so the mint is skipped (SEC-018 sprawl);
exactly one machine carries juju-controller-vr1-dc0, Ready.

Artifact sources PASS both DCs; egress re-probed from both racks with
--noproxy '*' -- bootstrap window OPEN. Instrument note recorded: the DC
checkers run ON the rack host and read all-MISS when run from voffice1.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf