R-426: one-register reads the leading verdict; decoys added, exemption removed

DONE/IDEA were searched over the whole state cell, so an open ROADMAP row whose
state named ANOTHER row's verdict (`READY — split out after R-86 CLOSED`)
escaped as shipped — R-87's shape from R-378, one file over. The gate now reads
register_table.leading_verdict(state); all 28 current rows classify unchanged.
Decoys: that shape (seen to PASS against the old gate), an id present in the
register only as prose (seen to PASS when `have` is loosened to any mention),
the existing suffix-id row; genuine: a row with a counterpart, and an `idea` row
asserted BY DESIGN — R-424's hole, accepted by the operator 2026-10-05.
EXEMPT drops `felhom.eu/one-register`.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

scripts/decoy_coverage_gate.py

@@ -33,9 +33,6 @@ import sys
 # Dated 2026-09-01. This list is DEBT, not a settled state: R-426 owns it and names every entry.
 EXEMPT = {
     # felhom.eu
-    ("felhom.eu", "one-register"):
-        "R-424 — a real defect parked under state `idea` is invisible. Declared in the gate's own "
-        "docstring as residual hole 1; the decoy passes today.",
     # felhom-controller
     ("felhom-controller", "docker-v"):
         "COVERED IN THE SWEEP, not yet in a suite: an unallowlisted `-v` host path in a new Go file "