Plan document export success messages

docs/modernization/build-inventory.md

@@ -649,6 +649,10 @@ Known local toolchain state:
   for image file exports, layer/frame collection directories, picked-directory
   stems, and MP4 suggested names as JSON and is covered for file, collection,
   and suggested-name states.
+- `pano_cli plan-export-message` exposes `pp_app_core` export completion
+  dialog metadata for equirectangular image, layer/frame collection,
+  depth/cube, animation MP4, and timelapse success paths as JSON, including
+  platform-style destinations and suppressed/no-message paths.
 - `pano_cli plan-export-start` exposes `pp_app_core` export availability
   planning for license-gated, demo-blocked, and missing-canvas states as JSON;
   the live image, layer, animation-frame, depth, and cube-face export dialogs