CLAUDE: scene list points at the test manifest - SET casesFile support

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>

cases.list.tmpl

@@ -8,6 +8,9 @@
 #   ln -s <dataRoot>/lists/cases.list cases.list     # optional repo-local link
 #                                                    # (gitignored) so a bare
 #                                                    # ./run_cases.sh finds it
+# and point the SCENE list at it (the scene list is the single source of
+# truth; the key is known to EyesisCorrectionParameters, a file - no mkdirs):
+#   SET casesFile lists/cases.list                   # relative to rootDirectory
 #
 # SAME CONVENTION as the scene-sequence .list files (lv_*.list): the header is
 # SET lines, the main body SELECTS cases by uncommenting them. Run with:

run_cases.sh

@@ -47,19 +47,26 @@ if [ -n "$corr_xml" ]; then
 fi
 
 # ---- locate the manifest (data-specific, lives under the data root) ----
-scene_list_root() { # rootDirectory from a scene list
-    sed -n "s/^SET[[:space:]]\+rootDirectory[[:space:]]\+\([^#]*\).*/\1/p" "$1" | tail -1 | sed 's/[[:space:]]*$//;s|/$||'
+scene_list_get() { # $1 = scene list, $2 = key
+    sed -n "s/^SET[[:space:]]\+$2[[:space:]]\+\([^#]*\).*/\1/p" "$1" | tail -1 | sed 's/[[:space:]]*$//'
 }
-if [ -z "$CASES" ]; then
-    if [ -f "$REPO/cases.list" ]; then
-        CASES="$REPO/cases.list"           # local copy or symlink into the data root
-    elif [ -n "$list_file" ] && [ -f "$list_file" ]; then
-        root="$(scene_list_root "$list_file")"
+if [ -z "$CASES" ] && [ -n "$list_file" ] && [ -f "$list_file" ]; then
+    # the scene list is the single source of truth: its own SET casesFile wins
+    # (relative -> vs its rootDirectory, the EyesisCorrectionParameters rule)
+    root="$(scene_list_get "$list_file" rootDirectory)"; root="${root%/}"
+    cf="$(scene_list_get "$list_file" casesFile)"
+    if [ -n "$cf" ]; then
+        case "$cf" in /*) CASES="$cf";; *) CASES="$root/$cf";; esac
+        [ -f "$CASES" ] || { echo "run_cases.sh: SET casesFile $cf in $list_file -> $CASES not found" >&2; exit 1; }
+    else
         for c in "$root/lists/cases.list" "$root/cases.list" "$(dirname "$list_file")/cases.list"; do
             [ -f "$c" ] && { CASES="$c"; break; }
         done
     fi
 fi
+if [ -z "$CASES" ] && [ -f "$REPO/cases.list" ]; then
+    CASES="$REPO/cases.list"               # local copy or symlink into the data root
+fi
 if [ -z "$CASES" ] || [ ! -f "$CASES" ]; then
     echo "run_cases.sh: no cases.list found. Install one under your data root:" >&2
     echo "  cp $REPO/cases.list.tmpl <dataRoot>/lists/cases.list  (then edit SET lines)" >&2