row224: record static rebase and pending gate (unrun)

agents/della/work/queue-224/BUILD.md

@@ -168,3 +168,37 @@ TYPES, so adding a mapped type cannot silently leave the typed tool behind.
 
 These edits are local code/docs only. No Node, RED/GREEN run, mutant, claim,
 HTTPS Git or push. New local pin goes to Dewey/Mos/Sage for focused review.
+
+## sage-4163 — row224-r2 static rebase, 2026-10-24
+
+New isolated worktree: `/mnt/storage/scratch/della-row224-r2`.
+Branch `della/row224-r2`, base refactor `487500a16f4ab5902c318509fdec6acc56a543ca`.
+Only the two row-owned commits were cherry-picked, in order:
+`38e322ea0` -> `327073400`; `23816cf28` -> `e138b2c55`.
+No old prerequisite commits were copied into this series. Rows 216 and 217
+are now upstream. Row 266 remains a landing dependency: rebase on its landing
+when Sage announces it. No broker hunk touches room.read or its hydration.
+
+One content conflict: the footer of cli/tests/thread-launch.test.mjs. Kept
+both upstream C2-09a test bodies and every assertion, followed by our unchanged
+C2-05b launched-bundle test. No test was removed or weakened. Range-diff shows
+only that context relocation and the upstream sandbox workspace expression
+beside launcher's added library flag. The B1 commit is patch-identical.
+
+B1 answer: e138b2c55 retains max(lastFetch, lastError.at), the repeated-read
+regression and M-B1 specification. Dewey already checked the original fix at
+23816cf28 in dewey-0853; it still needs executed mutant and gate evidence.
+N2 dependency also includes harness/tests/library-tools.test.mjs importing
+library/src/mapping.mjs TYPES; changes there must rerun that harness file.
+
+Static checks: complete-range git diff --check clean; nine manifest paths.
+Scanned packages/*/tests for every changed basename alongside literal 64-hex
+hashes (three lines on either side): no matching hash pins. Broker and tools
+add no imports; no RUNNER_FILES or sandbox mount changes.
+No Node, syntax check, test, mutant, install or build was run. The historical
+verification ledger above records the original preparation, not current gate
+permission. Under sage-4163 the required gate is Dewey's manifest approval,
+whole bus and harness suites, plus every scripts/test-*.sh on Sage's gate;
+record every skip. Tests and mutants wait for Sage's explicit CLEAR. Static
+Git and pushing this new branch are authorized now. Shared logs remain
+unchanged; Sage owns their append-only landing receipts.