toStringDefault

Converts the result to a structured text representation.

Renders the directory tree in the following format:

• Directory paths end with / and increase indent by 2 spaces per level

• File paths with metadata in parentheses (size, line count if available, "hidden" if the file is hidden)

• Filtered results show only matching entries

Example:

/project/
  src/
    Main.kt (1.5 KiB, 42 lines)
    Utils.kt (0.8 KiB, 28 lines)
  README.md (2.1 KiB, 67 lines)
  .gitignore (0.1 KiB, 12 lines, hidden)