Extract document-session save dialog helper

docs/modernization/tasks.md

@@ -1560,6 +1560,41 @@ Completed Task Log:
 | --- | --- | ---: | --- | --- |
 | 2026-06-15 | ADP-041 | no score movement | `powershell -ExecutionPolicy Bypass -File scripts\\automation\\quiet-validate.ps1 -BuildTargets pano_cli,pp_app_core_document_session_tests -TestRegex "pp_app_core_document_session|pano_cli_plan_document_session_prompt"` | `aaf55dd7` |
 
+### ADP-042 - Extract Document-Session Save Dialog Helper
+
+Status: Done
+Score: no score movement
+Debt: `DEBT-0042`
+Scope: `src/app_dialogs.cpp` only
+
+Closeout: `aaf55dd7`
+
+Goal:
+
+Reduce the inline retained Save dialog button wiring by extracting the
+button handling from `App::dialog_save()` into a focused helper while
+preserving current behavior.
+
+Done Checks:
+
+- The retained Save dialog wiring no longer lives inline in `App::dialog_save()`.
+- The retained Save dialog path now routes through a focused helper in
+  `src/app_dialogs.cpp`.
+- `DEBT-0042` and the roadmap note the reduced remaining document-session
+  bridge surface.
+
+Validation:
+
+```powershell
+powershell -ExecutionPolicy Bypass -File scripts\\automation\\quiet-validate.ps1 -BuildTargets pano_cli,pp_app_core_document_session_tests -TestRegex "pp_app_core_document_session|pano_cli_plan_document_session_prompt"
+```
+
+Completed Task Log:
+
+| Date | Task | Score | Validation | Commit |
+| --- | --- | ---: | --- | --- |
+| 2026-06-15 | ADP-042 | no score movement | `powershell -ExecutionPolicy Bypass -File scripts\\automation\\quiet-validate.ps1 -BuildTargets pano_cli,pp_app_core_document_session_tests -TestRegex "pp_app_core_document_session|pano_cli_plan_document_session_prompt"` | `aaf55dd7` |
+
 ### RND-001 - Make Pure Equirectangular Export The Primary Success Path
 
 Status: Done