C2 sub-task (i): sandbox re-verified faithful; fidelity-checker scope false-positive fixed ...

Re-ran the HARDENED fidelity check against office1-netbox (the VR1 IPAM apex,
DOCFIX-195) -- read-only dump via the consolidated sandbox token + an SSH tunnel.
Result: exit 0, "upstream draft + EXACTLY the planned delta (D-115/D-117/D-118)."
C2 sub-task (i) is CLOSED; the sandbox is proven faithful.

The hardened checker false-failed on 10.10.0.0/16 and 172.30.0.0/16 being
unscoped -- but those two role-container /16s are unscoped BY DESIGN
(d115-office-carve.py), matching the 27 unscoped role containers already in the
upstream apex. A full cross-check of all 44 delta prefixes against their intended
scope was 44/44 (every DC prefix on the correct DC site; no wrong-target binding).

Fix (netbox/sandbox-fidelity-check.py): assert scope == INTENDED per delta prefix
(EXPECTED_PREFIX_SCOPE; DC half generated by _dc_prefix_scopes so the CIDR set and
scope map cannot drift). Strictly stronger than the old "has a scope?" test -- still
catches a dropped scope, and now catches a WRONG-TARGET binding (a DC0 prefix bound
to vr1-dc1, the D-117 near-miss). NOT fixed by exempting the two CIDRs.

Harness moved to dump format (scope_site), T1 sets each prefix's scope from the
checker's own map, +T9 (wrong-target fails) +T10 (legit-unscoped passes). 10->12.
Gauntlet ALL GREEN (58); repo-lint 0 fail.

SEC-009: the sandbox NetBox token had been MISSED by the consolidation (lived only
at /root/netbox-secrets/api.token on office1-netbox); now consolidated to
~/vr1-office1-creds/vr1-netbox-sandbox.env (0600), copied off the VM without
printing. Ledger addendum recorded.

No NetBox state changed -- dump and check are read-only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015WgVrZE2ryY9aXP7JiBuwj