pipe: Q124 DONE -- the roster gains the eight lane signers (ruled, not tolerated), and the checkin leg's last row is removed

Volt's Q123 escalated instead of deciding whether WIZARDS-TABLE.md gains the working
lanes or check-ins must be signed by a wizard handle. Ruled: lanes sign as themselves.

- WIZARDS-TABLE.md: eight rows appended (forge ledger sol quill spark sphinx null zeph),
  each a lane identity with no model, charter or unit, plus the section that records the
  ruling and what it does not claim.
- tools/checkin_baseline.tsv: the 2026-10-27-forge.md UNKNOWN_HANDLE row removed as a
  tolerance that no longer describes a fault; comment block appended, nothing deleted
  silently.
- Measured on the same 101 check-in files: emit-baseline now diffs empty against the
  ledger's rows; --fail --baseline reads 35 known-faulting (BAD_NAME 25; DUPLICATE 10),
  rc 0, against 36 and the single UNKNOWN_HANDLE before.
- Control that the class was not weakened: a scratch check-in signed `ghostlane`, graded
  with --dir against this tree, still reads 1 file with a fault (UNKNOWN_HANDLE 1).
- tools/verify.py --repo .: 8 legs, 8 pass, gate: OK.

tools/checkin_baseline.tsv

@@ -43,4 +43,8 @@
 # Tolerated as the archive first lane-signed check-in, printed with its class on
 # every run; escalated and not decided -- see WORK-QUEUE.md Q123 and
 # wizard-outputs/volt/2026-10-28-gate-ledger-adjudication.md.
-2026-10-27-forge.md	UNKNOWN_HANDLE
+# 2026-10-28 (pipe, Q124): resolved rather than tolerated. WIZARDS-TABLE.md gained
+# the eight lane signers, so the emit-baseline reading over the same 101 files is
+# 35 rows and no longer contains `2026-10-27-forge.md UNKNOWN_HANDLE`; the row is
+# removed as a tolerance that no longer describes a fault. The class is unchanged
+# and still faults on a name no roster row covers.