209e2ebdda
Review follow-ups for the salvaged picker partitioning: - Drop the _model_chunks stash — it went stale when navigating to a provider with an empty model list (early return skipped the reassignment), producing a wrong 'N more available' count. Derive shown = min(len(models), 75) directly instead. - Add _DISCORD_SELECT_MAX_OPTIONS / _DISCORD_SELECT_MAX_ROWS constants per the file's named-limits convention; replaces 4 bare literals. - Remove dead total_rows variable.