[tiensonqin]

Summary

• Attach editor chrome, its bottom inset, and the docked-keyboard reader to the visible navigation surface. Root owns them while the path is empty; otherwise the last pushed destination owns them. Previously the focused-block toolbar stayed on the offscreen root.
• Pin merged LUI a562931873db79f31f479f2937af7289de7b7f85, including the viewport-visibility fix in Refresh Apple virtual row visibility when the viewport changes lui#318 while preserving the current native drawer fix. A transient zero-height viewport previously removed top rows without registering them again when the viewport recovered.
• Add one pushed-editor runtime regression check. It fails with the original navigation implementation and checks actual native toolbar visibility rather than relying on optional backend frame reports.

Related: logseq/db-test#1505

Verification

• Fresh simulator build with LOGSEQ_IOS_ENABLE_TESTING=1 LOGSEQ_OPAM_SWITCH=5.5.0 opam exec --switch=5.5.0 -- scripts/build-mobile-ios-simulator.sh; fetched LUI checkout clean at the committed pin, no local override.
• Native iPad Air 11-inch M4 / iOS 27.0 simulator, real 120-row dark graph: untouched top rows, software-key edits, table and siblings, focused child/task action, docked and moved floating keyboards, dismissal and Back all verified. Initial virtual start stayed at 0 at 6.47s and 65.26s.
• python3 scripts/test-swift-ui-suite.py: 111 tests in 14 suites passed.
• Passed PushedBlockEditorCheck (3 consecutive final-pin runs), PushedBlockSelectionCheck, SearchEditorToolbarCheck, NavigationContentStabilityCheck, MarkdownScrollCheck, IPadFloatingKeyboardCheck, and LUIVirtualListReentryRuntimeCheck on the same iPad simulator.
• git diff --check and staged whitespace checks passed.

Known pre-existing failure

OutlinerKeyboardStabilityCheck still detects a 7pt visible-row shift. The original mobile navigation plus the original LUI pin reproduces the same row40 movement (82.5 → 75.5) with content offset unchanged at 1100. This check is not relaxed or marked passing. Earlier indent-guide overflow diagnostics were inconclusive; this PR does not claim to fix that separate transient.

The reported physical iPadOS 27.0.1 device was not available; verification above is the native iPad simulator, not a desktop/web substitute.

Final native iPad evidence

Untouched long-page startup	Focused child with floating keyboard

Link to Devin session: https://app.devin.ai/sessions/b14d9e9dd8f84b52a9b0493f3deca31e
Open in Devin Desktop: https://app.devin.ai/desktop/session/b14d9e9dd8f84b52a9b0493f3deca31e?variant=devin
Requested by: @tiensonqin

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🟢 Devin Review found nothing to fix · View findings

[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.