Plan cloud browse decisions in app core

docs/modernization/roadmap.md

@@ -448,6 +448,10 @@ canvas/recording export execution.
 the live cloud upload command for missing-canvas, new-document warning, publish
 prompt, and dirty-document save-before-upload states before legacy UI, canvas,
 and network execution continue.
+`pano_cli plan-cloud-browse` exposes the app-core cloud browse and selected
+download decisions used by the live cloud browse command before legacy dialog,
+network download, canvas project-open, layer UI, and action-history execution
+continue.
 `pano_cli parse-layout` exercises the XML layout path. Continue expanding
 document behavior toward legacy Canvas parity and then port OpenGL classes
 behind the renderer boundary.
@@ -895,12 +899,17 @@ Results:
   aggregate stroke-script counts/distances.
 - `pp_app_core_document_cloud_tests` passed, covering cloud upload no-canvas,
   new-document warning, clean publish prompt, and dirty save-before-upload
+  decisions, plus cloud browse no-canvas/show-browser and selected-download
   decisions.
 - `pano_cli_plan_cloud_upload_clean_smoke`,
   `pano_cli_plan_cloud_upload_unsaved_smoke`,
   `pano_cli_plan_cloud_upload_new_document_smoke`, and
   `pano_cli_plan_cloud_upload_no_canvas_smoke` passed and expose those app-core
   cloud upload decisions as JSON.
+- `pano_cli_plan_cloud_browse_waiting_smoke`,
+  `pano_cli_plan_cloud_browse_selected_smoke`, and
+  `pano_cli_plan_cloud_browse_no_canvas_smoke` passed and expose app-core cloud
+  browse/download-selection decisions as JSON.
 - `panopainter_validate_shaders` passed, validating 25 shader programs and 7
   shader includes for stage markers and include graph integrity.
 - `pp_renderer_gl_capabilities_tests` passed on default MSVC, vcpkg-headless,