Route document session prompts through app dialog bridge

docs/modernization/roadmap.md

@@ -1009,6 +1009,10 @@ The retained document-session prompt boxes now consume a pure prompt catalog for
 close-unsaved, save-before-workflow, new-document overwrite, Save As overwrite,
 and save-error metadata; `pano_cli plan-document-session-prompt` exposes the
 same titles, messages, button captions, and cancel visibility for automation.
+Close-unsaved, save-before-workflow, new-document overwrite, and Save As
+overwrite prompt creation now also goes through
+`src/legacy_app_dialog_services.*` before the document-session bridge attaches
+its legacy callbacks.
 `App::dialog_newdoc` now routes accepted new-document plans through the
 app-core new-document executor and `src/legacy_document_session_services.*`,
 preserving target overwrite prompts, legacy canvas resize/layer setup, history
@@ -1763,6 +1767,17 @@ Results:
   tests after the legacy bridge split.
 - Android arm64 headless `pp_app_core`, `pano_cli`, and
   `pp_app_core_app_dialog_tests` built after the app-dialog bridge split.
+- `PanoPainter`, `pp_app_core_document_session_tests`,
+  `pp_app_core_app_dialog_tests`, and `pano_cli` built after document-session
+  prompts moved onto `src/legacy_app_dialog_services.*`.
+- Focused document-session/app-dialog CTest coverage passed for
+  `pp_app_core_document_session_tests`, `pp_app_core_app_dialog_tests`,
+  `pano_cli_plan_document_session_prompt_*`, `pano_cli_plan_app_dialog_*`, and
+  `pano_cli_simulate_app_session_*` after the document-session prompt bridge
+  split.
+- Android arm64 headless `pp_app_core`, `pano_cli`,
+  `pp_app_core_document_session_tests`, and `pp_app_core_app_dialog_tests`
+  built after the document-session prompt bridge split.
 - `PanoPainter`, `pp_app_core_app_startup_tests`, and `pano_cli` built after
   startup preference/runtime execution and startup resource sequencing moved
   behind app startup services.