docs(ledger): record PR #1238 prlanded squash merge

docs/branch-review-ledger.md

@@ -1035,3 +1035,4 @@ This file is append-only. Never rewrite or delete an existing review record; app
 | 2026-07-25 | PR #1195 / `subagent-Asset-Optimization-Implementer-self-b295a5bb` | `c612c88aae386a29715cadfb5dbd2b95163e1dc9` | prlanded after squash merge | MERGED. Squash tip `c612c88aa` on main; remote feature branch deleted. Product content verified on main (`check:assets`, icon Cache-Control, SignedImage/non-PDF a11y). Local review worktree retained for optional cleanup. | gh pr view MERGED; two-dot product-file diff empty vs origin/main; no provider checks. |
 
 | 2026-07-26 | PR #1238 / `cursor/header-hide-top-bar-only-4fd7` | `fdc20bfedb61a2c267c22a3d78ccc8214e6c0087` | Continue-executing: top-bar-only hide + CI green | APPROVE / MERGEABLE. Root cause fixed: collapse wraps only `header#search` (+ Therapy addon); sticky hosts pin outer [top bar \| search] below `chrome-safe-area-top` without translating search away; sticky-stack composers stay `relative`. Services rail overlay hardened (testids + center scrollIntoView); ui-tools accepts sticky ancestor; Therapy nav assert uses collapse-host top under safe-area spacer. Merged main safe-area + submitted-result focus rules. | Hosted PR required + Production UI SUCCESS on tip; contract 14/14; focused Playwright services/desktop composers 6/6, chrome-scroll 12/12, therapy-nav 1/1. No provider-backed checks. |
+| 2026-07-26 | PR #1238 / `cursor/header-hide-top-bar-only-4fd7` | head `db4390b3814910d0210497e2982414904f2e0704` / squash `cdbe0e662366f9308813e8d5fe8951ca11a47d6b` | prlanded after squash merge | LANDED. Top-bar-only hide-on-scroll with sticky search stack below `chrome-safe-area-top`; two-dot content diff empty vs `origin/main`. Remote feature branch deleted at merge. Required CI green at merge (PR policy, PR required, Production UI). | `gh pr view` MERGED; `git diff origin/main db4390b3` empty; no provider-backed checks. |