Fix StoredView missing child_view_ids delegation (build break)

[alokedesai]

Description

Fixes a build break caused by a semantic merge conflict between #12633 and #12746, and makes the fix properly extensible for TUI views.

Root cause: #12633 ("Add TUI API surface to AppContext under tui") introduced StoredView — a Gui/Tui enum replacing Box<dyn AnyView> as the value type of Window.views. It forwarded every neutral hook to the inner view except child_view_ids. #12746 ("Cross Window Tab Dragging Bug Fixes") had already added a call to view.child_view_ids(self) in collect_transferable_subtree (app.rs:3306), which compiled fine against Box<dyn AnyView> but broke once the map type changed. Because #12633 was not rebased on #12746, its CI was green; the breakage only surfaced on the dev release branch after both landed.

Changes:

1. StoredView (window.rs): delegates child_view_ids to the inner view for both Gui and Tui arms, mirroring every other hook already present.

2. TuiView / AnyTuiView (view/tui.rs): threads child_view_ids through the full TUI trait stack — added to TuiView (defaulting to Vec::new()), to the AnyTuiView object-safe interface, and to the impl<T: TuiView> AnyTuiView for T blanket impl. TUI views participate in the same structural parent/child graph as GUI views and could in principle hold out-of-graph child ViewHandles; any TuiView that does so can now override child_view_ids and have those children picked up correctly by collect_transferable_subtree during window transfer.

Linked Issue

N/A — this is a build-break hotfix.

• The linked issue is labeled ready-to-spec or ready-to-implement.
• Where appropriate, screenshots or a short video of the implementation are included below (especially for user-visible or UI changes).

Testing

• I have manually tested my changes locally with ./script/run

cargo check -p warpui_core and cargo clippy -p warpui_core --lib --all-features -- -D warnings both pass.

Agent Mode

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Overview

This PR restores child_view_ids delegation across the TUI view abstraction and StoredView, matching the existing GUI ownership traversal hook used during view tree transfer.

Concerns

• No blocking correctness, security, or spec concerns found in the changed lines.

Verdict

Found: 0 critical, 0 important, 0 suggestions

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