Pressing / in either pane opens a live case-insensitive substring
filter: typing narrows the visible rows, Enter keeps the filter and
returns to navigation, Esc clears it. A shared Filter helper keeps each
pane full list intact and maps view indices to real ones, so movement
keys work on the filtered view unchanged and the queue maps a filtered
selection back to the real server position before removing or setting
current. The library resets search on node change; the queue preserves
it across stream updates.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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