Plan recording session decisions in app core

docs/modernization/roadmap.md

@@ -444,6 +444,10 @@ stems, and MP4 suggested names used by the live export dialogs.
 used by live image, layer, animation-frame, depth, and cube-face export dialogs
 plus MP4 animation and timelapse export dialogs before they call legacy
 canvas/recording export execution.
+`pano_cli plan-recording-session` exposes the app-core recording start, stop,
+clear, platform recorded-file cleanup, frame reset, and export progress-total
+decisions used by the live recording controls before legacy recording threads,
+PBO readback, and MP4 encoder execution continue.
 `pano_cli plan-cloud-upload` exposes the app-core cloud upload decision used by
 the live cloud upload command for missing-canvas, new-document warning, publish
 prompt, and dirty-document save-before-upload states before legacy UI, canvas,
@@ -918,6 +922,13 @@ Results:
   `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.
+- `pp_app_core_document_recording_tests` passed, covering recording start/stop,
+  clear, platform recorded-file cleanup, frame-count reset, export progress
+  totals, and oversized progress-total clamping.
+- `pano_cli_plan_recording_session_stopped_smoke`,
+  `pano_cli_plan_recording_session_running_smoke`, and
+  `pano_cli_plan_recording_session_platform_cleanup_smoke` passed and expose
+  app-core recording lifecycle/export 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,