cottongin 51dc498768 feat: Expandable selected row for long filenames in File Browser ...

When the selected row's filename overflows the available text width
(with extension), the row expands to 2 lines with smart text wrapping.
The file extension moves to the second row (right-aligned). Non-selected
rows retain single-line truncation.

Key behaviors:
- 3-tier text wrapping: preferred delimiters (" - ", " -- ", en/em-dash),
  word boundaries, then character-level fallback
- Row-height line spacing for natural visual rhythm
- Icons aligned with line 1 (LyraTheme)
- Pagination uses effectivePageItems with anti-leak clamping to prevent
  page boundary shifts while ensuring all items remain accessible
- Boundary item duplication: items bumped from a page due to expansion
  appear at the top of the next page, guarded against cascading

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-02-20 19:42:56 -05:00

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