fix(ui): use direct blur handler for DID allowAdditions dropdown commit

Replace forceSelection/onHide approach with direct blur listener on
the search input element. onHide depends on Fomantic animation state
and may not fire; direct blur always fires. Uses 150ms delay to avoid
conflicts with menu item selection (Fomantic clears search on select).
Also restore value/text after Fomantic init to prevent placeholder reset.

Author: Alexey Portnov