The scene-sequence .list is the single source of truth: it now carries
SET casesFile lists/cases.list (relative to rootDirectory, the
EyesisCorrectionParameters rule). run_cases.sh discovery order: -c arg ->
the scene list's SET casesFile (when -x/-l provides the list; explicit
pointer, missing target = hard error) -> convention lookup under
rootDirectory -> repo-local gitignored link. Verified: -l, -x and bare
modes all resolve to the same manifest/model.

Java companion (imagej-elphel): casesFile added to KEY_DIRS (index 12,
file-exempt from the auto-mkdirs) so the SET parses cleanly.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>