Hoist outliner toolbars into the bottom bar and bump lui for Duo layout

[tiensonqin]

Summary

iPhone Duo adaptation, part 2: the outliner selection and editor toolbars now hoist into the real .bottomBar via ~placement:"bottom", so iOS 27.1 relocates them into the vertical side bar on the unfolded inner display — matching Apple's guidance that bottom toolbars move to the sidebar on Duo. On iOS <27.1 they render in the standard bottom bar; on macOS and Flutter placement:"bottom" falls back to inline rendering, so nothing changes there.

The wide bottom chrome (composer, capture, search) intentionally stays inline — per Apple, wide controls remain in place on Duo; only toolbar/tab-bar items relocate.

The header needs no change: the extension already mounts the sidebar button, title, sync, and connection status into native ToolbarItem/ToolbarItemGroup placements, which adapt automatically.

Depends on the two open lui PRs (both pinned here by commit):

• apple: pin the drawer panel beside content at regular width lui#36 — drawer pins the nav panel beside content at .regular width (unfolded Duo / iPad); overlay behavior preserved at .compact.
• elements: expose the toolbar placement prop lui#37 — exposes the placement prop on Lui_elements.toolbar.

Bumps apple/Package.swift to the drawer-PR head (0e491ba) and logseq_chat.opam to the placement-PR head (e2d35db). Both commits are on the remote and fetchable; re-pin to main after the lui PRs merge.

Validated: dune build @shared/native/runtest — 707 tests green.

Link to Devin session: https://app.devin.ai/sessions/daf154855d664a4e9a456877e847d185
Open in Devin Desktop: https://app.devin.ai/desktop/session/daf154855d664a4e9a456877e847d185?variant=devin
Requested by: @tiensonqin

[devin-ai-integration]

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