Track cutter stills and clips in repo, always render with clips

- cli.py auto-regen now produces video clips on every match (no opt-in
  flag). Best presentation comes first; speed cost (~minutes per match)
  is accepted.
- output/cutter_stills/ and output/cutter_clips/ are no longer gitignored.
  All 45 stills and 45 short MP4 previews are committed alongside the
  CUTTER_REPORT.{md,html} so the remote repo always shows the current
  state — even when the report files are inspected without running the
  generator.
- Other output/ contents (FCPXML, EDL, debug folders, HTML report) stay
  ignored.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

cli.py

@@ -101,7 +101,7 @@ def _regenerate_cutter_report(cfg: "AppConfig") -> None:  # type: ignore[name-de
         return
     try:
         project_root = cfg.paths.cache_dir.parent
-        md, html = render_report(project_root, with_stills=True, with_clips=False)
+        md, html = render_report(project_root, with_stills=True, with_clips=True)
         (project_root / "CUTTER_REPORT.md").write_text(md, encoding="utf-8")
         (project_root / "CUTTER_REPORT.html").write_text(html, encoding="utf-8")
         logging.getLogger(__name__).info("Cutter report regenerated (md + html)")