Extract export menu action planning

docs/modernization/roadmap.md

@@ -516,6 +516,10 @@ route decisions, including wide equirectangular images, legacy vertical cube
 strips, regular transform-placement images, and invalid image dimensions before
 legacy `Canvas::import_equirectangular` or import transform-mode execution
 continues.
+`pano_cli plan-export-menu` exposes app-core planning for File menu export
+choices, including image, layer, cube-face, depth, animation-frame, MP4, and
+timelapse dialog routing plus license/canvas gating before legacy export dialogs
+and renderer/video execution continue.
 `pano_cli plan-grid-operation` exposes app-core planning for grid heightmap
 pick/load/reload/clear, lightmap render capability/limit checks, and heightmap
 commit used by the live grid panel before legacy image loading, OpenGL texture
@@ -1203,6 +1207,14 @@ Results:
   `pano_cli_plan_image_import_transform_smoke`, and
   `pano_cli_plan_image_import_rejects_invalid_dimensions` passed and expose File
   > Import route planning as JSON automation.
+- `pp_app_core_document_export_tests` passed, now also covering export menu
+  dialog routing, demo-mode MP4/timelapse license gating, and missing-canvas
+  handling before legacy export dialogs continue.
+- `pano_cli_plan_export_menu_png_smoke`,
+  `pano_cli_plan_export_menu_mp4_demo_blocked_smoke`,
+  `pano_cli_plan_export_menu_no_canvas_smoke`, and
+  `pano_cli_plan_export_menu_rejects_unknown` passed and expose File menu export
+  routing as JSON automation.
 - `pp_app_core_history_ui_tests` passed, covering undo/redo availability,
   no-op history commands, clear-history stack/memory state, memory-only clear,
   and negative metric rejection.