The "p. Enter a custom path" branches of the OMEN and Markov training
pickers, the combipow wordlist prompt, and the rule cleanup/optimize
output-path prompts used a bare input() with no readline completer, so
TAB did nothing. Route them through select_file_with_autocomplete.
Also drop the path completer after each selection so later numeric-menu
and y/n prompts don't inherit stale file-path tab completion.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>