Plan new document creation in app core

docs/modernization/build-inventory.md

@@ -397,6 +397,10 @@ Known local toolchain state:
 - `pano_cli plan-open-route` exposes `pp_app_core` document-open action
   planning as JSON and is covered for clean project open, dirty project
   discard-prompt, and ABR import-prompt states.
+- `pano_cli plan-new-document` exposes `pp_app_core` new-document target,
+  legacy resolution-index mapping, and overwrite-prompt planning as JSON and is
+  covered for save-now, existing-target overwrite, and invalid-resolution
+  states.
 - `pano_cli plan-document-file` exposes `pp_app_core` document-name
   validation, legacy `.ppi` path construction, and overwrite-prompt decisions
   as JSON and is covered for save-now and existing-target overwrite states.
@@ -420,9 +424,10 @@ Known local toolchain state:
   directory/stem targets, picked-directory stems, MP4 suggested names, and
   invalid export naming inputs.
 - `pp_app_core_document_session_tests` covers clean and dirty app session,
-  document-open action planning, save-request, save-before-workflow, document
-  file target, overwrite, and save-version target decisions without requiring
-  a window, canvas, or message box.
+  document-open action planning, save-request, save-before-workflow,
+  new-document target/resolution/overwrite planning, document file target,
+  overwrite, and save-version target decisions without requiring a window,
+  canvas, or message box.
 - `pp_ui_core` consumes vcpkg tinyxml2 only when `PP_USE_VCPKG_TINYXML2=ON`
   through the vcpkg preset; default and Android validation still use the
   retained vendored fallback tracked by DEBT-0012.