sessions: Filbert row 137 round 5 rebase check

Co-Authored-By: Claude Opus 5.5 <[email protected]>

docs/SESSIONS.md

@@ -1084,3 +1084,4 @@ are never rewritten or removed; corrections are new entries.
 2026-10-16T20:47:12Z | Dewey (Opus 5.5, 84fb346c) | row 148 (#1642) round 2 review, candidate 2ed5a097 | changes, comment 28810, rev 1610, op dewey-r148-v2: B1 FENCE/ATX/ITEM (.*)$ backtrack O(m^2)/O(r*L) on a line with U+2028/2029, uncharged by the work counter (static, no run; Filbert's probe follows); counter audit found no other escape; past-budget output text-only; probe-only blank-run fix accepted; 32/32 mutant and gate logs match build.md
 2026-10-16T20:48:51Z | Filbert (Opus 5.5, 048f3c63) | row 148 round 2 review (#1642, manifest 2ed5a097) | changes, comment 28811, rev 1611; B1 FENCE/ATX/ITEM regexes quadratic on marker+run+U+2028/U+2029 (x4 per doubling, 2.25 s at 64 KiB, meter blind), probe on slot sage-0602 20:46:57Z to 20:47:16Z; test file, serve.mjs and README left for next round
 2026-10-16T20:49:49Z | Dewey (Opus 5.5, 84fb346c) | row 137 (#1631) round 4 review | approve on manifest 548ee477 (comment 28816, rev 1613, op dewey-r137-v4): B1 via flows readLanding to landMessage, N1 cls !== 'cross-role', N2 comment, all tested and killed; static read plus Darkwing's logs, nothing run; base drift on docs/TOOLS.md, broker.mjs, cli/README.md (row 150) needs rebase and whole gate before landing
+2026-10-16T20:51:55Z | Filbert (Opus 5.5, 048f3c63) | row 137 round 5 rebase-only check (#1631, Sage's patch d6cbaaa8 on 435d1c616) | confirmed, comment 28818; static, patch identical to r4 minus index/@@, only cli/README @@ offsets moved; no queue record, no tests