[cyanzhong]

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[Copilot]

🟡 Changes recommended

The deferred newDocument: handling bypasses the menu item's target and responder chain, potentially creating a standard document instead of invoking the validated handler.

1 open issue

• Deferred New dispatch bypasses the menu item's responder chain · New

What changed in this PR

This PR works around an incorrect animation origin when Quick Search creates the first document by deferring the New action until after palette dismissal.

Changes:

• Adds an injectable menu-action handler to QuickSearchController, preserving normal dispatch by default.
• Defers standard New execution to the main queue in the application-specific handler.
• Extends activation tests to verify handler invocation for enabled actions and rejection of disabled actions.

File	Description
MarkEditMac/​Sources/​Main/​Application/​AppDelegate+QuickSearch.swift	Defers New to avoid the document animation glitch.
MarkEditMac/​Modules/​Tests/​QuickSearchMenuTests.swift	Checks custom dispatch invocation and disabled-action rejection.
MarkEditMac/​Modules/​Sources/​QuickSearchUI/​QuickSearchController.swift	Adds and invokes the configurable menu-action handler.

_{Review effort: Balanced}