The Files page and the conversation's files modal searched only on
Enter. Both now search by name or path a moment after the last
keystroke (useDebouncedValue, AppData.SearchDebounceMs), clearing shows
the whole list at once, and the modal drops an answer a newer request
overtook. The Files search box no longer locks while a folder loads.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
