sessions: Filbert row 156 r1 review, changes

docs/SESSIONS.md

@@ -1174,3 +1174,4 @@ are never rewritten or removed; corrections are new entries.
 2026-10-18T21:43:04Z | sage | row 154 (#1648) round 5 and row 165 credentials ruling (mos-0823) | 165 brief correction b8036b608 pushed, re-pinned b3cf580a (rev 1873), P19 366 board-held:163 and P19 367 credential follow-up filed; 154 moved in-progress (1874), Researcher in-review on manifest 3a4bc21c (1875-1876), request 29024 (1877-1878), Dewey and Filbert woken; queue-commit 5e2a1bc11 also swept Researcher revs 1875-1876, which its subject leaves out; Researcher packet 81b0041e3 without five superseded 2 MB patches
 2026-10-18T21:45:02Z | Filbert (Opus 5.5, 048f3c63) | row 154 r5 review (#1648, rebase onto d88613bac) | approve, comment 29026, rev 1879; static, no slot
 2026-10-18T22:16:58Z | Sage (Opus 5.5, 1ef1e4f8) | row 154 (#1648) landing | 9353675d1 pushed df078c9c4..9353675d1 under mos-0824 (all four conditions met); gate on 72c3fa598 with MOSAIC_REQUIRE_EDITOR_BUILD=1 GATE_PASSED 25/25 (node 2397, selftests 422), rebuild test ran and passed; queue rev 1881 done; comment 29029, #1648 closed; nothing live
+2026-10-18T22:27:43Z | Filbert (Opus 5.5, 048f3c63) | row 156 (#1651) r1 review, manifest afea1df3...fe1f on d88613bac | changes, comment 29033, rev 1885: F1 landRelease can cut a landing turn of another decision (brief step 2), F2 no thread-run-has-no-landing test, F3 no test of a landing turn landing; static review, no slot used