docs(records): CHAT-02 build log, Gate F commit, snapshot isolation gap

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

docs/plans/2026-09-26_lead-decisions.md

@@ -211,3 +211,10 @@ which stay with him. Each item names who decided it and what happened.
     The two nonblocking notes from Darkwing (the scan test checks keys, not
     status values, and it reads a fixed list of three files) go to Dewey as
     optional. The Console and its WebUI proxy allowlist are next.
+18. **Gate F committed.** Filbert approved Darkwing's build (manifest
+    ba73a163, review e47ec6da), with the U+2028 reader fix as its own item.
+    Sage committed the eleven paths as 136958c9 after the eight suites and
+    ledger 47/47 passed on an index export. It was pushed. The live ledger
+    had been refusing on HEAD because of that line split, and it reads
+    again. Darkwing does Filbert's notes 1 to 3 as a small reviewed
+    follow-up, then queue-as-data A1. Note 4 is in DEFERRED.

docs/plans/DEFERRED.md

@@ -129,6 +129,11 @@ at every gate. Started 2026-09-12 during the control board MVP.
   networks. The dw-* ones are still there. Fix: the export recipe, or the
   suites, removes the project network on exit. (2026-09-26)
 
+- **Ledger T3 read: snapshot isolation has no test.** `readT3` runs every
+  query in one read transaction, but no test proves a write landing during
+  the read stays invisible. Filbert's note 4 on the Gate F build (e47ec6da).
+  Notes 1 to 3 go to Darkwing's follow-up. (2026-09-26, #1506)
+
 ## Queue
 
 Moved to `docs/plans/QUEUE.md` on 2026-09-13. This file holds only gaps.