Centralize retained delete confirmation closing

docs/modernization/debt.md

@@ -531,6 +531,9 @@ agent or engineer to remove them without reconstructing context from chat.
 - 2026-06-12: DEBT-0063/DEBT-0058 were narrowed again. Browse accept, resize
   accept/failure, and what's-new read-later/close callbacks now route retained
   dialog destruction through `src/legacy_ui_overlay_services.*`.
+- 2026-06-12: DEBT-0063/DEBT-0058 were narrowed again. Open/Browse
+  delete-confirmation message boxes and shared destroy-on-click bindings now
+  use the retained dialog close helper in `src/legacy_ui_overlay_services.*`.
 - 2026-06-05: DEBT-0011 was narrowed. The Windows app package smoke target now
   passes the configure-time CMake executable into `package-smoke.ps1`, so VS
   2026 generator validation does not depend on an older `cmake` on PATH, and

docs/modernization/roadmap.md

@@ -506,6 +506,8 @@ App-level new-document, save, and layer-rename cancel callbacks now share the
 retained dialog close plus virtual-keyboard hide helper.
 Browse accept, resize accept/failure, and what's-new read-later/close callbacks
 now use a named retained dialog close helper instead of direct `destroy()` calls.
+Open/Browse delete-confirmation message boxes and shared destroy-on-click
+bindings now use that same retained dialog close helper.
 Raw popup callback captures and full close/capture ownership remain part of
 `DEBT-0063`.
 `pano_cli inspect-image` exposes PNG IHDR metadata as JSON,