Scans common Wine prefix locations (~/Games, ~/.wine, Lutris, Bottles,
Heroic) plus any user-supplied --dir paths for each configured
launcher's exe. Reports matches with four markers:
✓ already configured at that prefix
→ detected at a different prefix (--apply to update)
⚠ multiple prefixes match (ambiguous)
· not found
--apply writes the new prefix_dir back to config.toml for unambiguous
cases; ambiguous ones are skipped with a note to resolve via
`config edit`. The Setup doc comment is also refreshed since the iced
wizard landed in an earlier commit.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>