Route SonarPen tools action through platform services

docs/modernization/build-inventory.md

@@ -190,9 +190,9 @@ Known local toolchain state:
   menu routing, export-menu routing, main-toolbar commands, About menu
   commands, and direct Tools menu commands. It keeps those live paths on the
   `pp_app_core` contracts while legacy dialogs, pickers, cloud/share/export,
-  Tools, About, history, canvas-clear, and settings execution remain tracked by
-  `DEBT-0029`, `DEBT-0030`, `DEBT-0031`, `DEBT-0033`, `DEBT-0034`, and
-  `DEBT-0035`.
+  Tools, About, history, canvas-clear, settings, and platform SonarPen startup
+  execution remain tracked by `DEBT-0029`, `DEBT-0030`, `DEBT-0031`,
+  `DEBT-0033`, `DEBT-0034`, and `DEBT-0035`.
 - `src/legacy_app_preference_services.*` is the current app-shell bridge for
   options-menu preference execution. It keeps UI scale, viewport scale, RTL,
   VR mode, VR-controller, auto-timelapse, and canvas cursor-mode callbacks on
@@ -554,8 +554,9 @@ Known local toolchain state:
   callbacks, recording cleanup, exported-image publishing, persistent storage
   flushing, document browse roots, native UI/window state saving, live
   asset/layout reload policy, diagnostic stacktrace/crash hooks,
-  prepared-file writable target selection, network TLS verification policy,
-  and prepared-file save/download handoff; PPBR and MP4 export dialogs consume
+  SonarPen availability/startup, prepared-file writable target selection,
+  network TLS verification policy, and prepared-file save/download handoff; PPBR
+  and MP4 export dialogs consume
   the same prepared-file policy at runtime instead of spelling mobile/Web
   branches locally, layer/frame collection export dialogs consume the
   work-directory collection policy before `pp_app_core` plans immediate