fix(launcher): Modal focus stealing during polling-induced re-renders

[chundaoketa]

Problem

In any dialog (New Agent, Configure, Connect, Delete confirmation, etc.), clicking an input field that is not the first one causes focus to jump back to the first input after a few seconds. This happens on all pages with open dialogs.

Root Cause

The Modal component useEffect had [open, onClose] as dependencies. When parent components pass inline arrow functions as onClose (the common pattern across all pages), any parent re-render changes onClose reference identity. This triggers:

1. Effect cleanup -> calls previouslyFocused.focus() - restores focus to the element outside the dialog
2. Effect re-runs -> detects activeElement is no longer inside the panel -> focuses the first focusable child

Pages like agents (5s polling), workspaces (8s), and logs (3s) all have setInterval that triggers re-renders, making the dialog focus jump back to the first input every few seconds while a dialog is open.

Fix

1. Store onClose in a ref (onCloseRef) so the effect no longer depends on its reference identity
2. Remove onClose from the effect dependency array ([open] only)
3. Also deduplicate modalStack.push to avoid accumulating duplicate entries on effect re-runs

Files Changed

• packages/launcher/src/renderer/components/ui/Modal.tsx

[vercel]

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