refactor: replace table list view with card-based layout (#26)

Replace prettytable grid with card-based rendering using
SectionRenderer. Each item displays as a section with the ID as
the bold header and metadata as aligned key-value pairs below a
terminal-width separator.

Remove prettytable-rs dependency and unused wrap_text/wrap_path utils.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sachiniyer