The AnchoredPopover-based version had three UAT-caught bugs: the field
showed an ugly "Add" placeholder; the first click couldn't type (the
platform's FloatingFocusManager + focusItemOnOpen pulled focus onto the
list, blurring the field until a second click); and an outside click didn't
close the list. A visual pass also caught the dropdown rendering BEHIND the
sidebar panel (z-menu 20 < z-panel 35).
Rebuilt on floating-ui primitives directly — no focus manager, so focus
stays in the field; open is driven by field focus; useDismiss closes on
outside-press/Escape; the list is a z-popover (60) FloatingPortal sized to
the field width. Placeholder is now a plain "Search" (empty once chips
exist). Verified in the browser: type-on-first-click, filter, chip add,
outside-close, and the list painting above the sidebar.
peter
29f2c9059e