Centralize retained drag capture release

docs/modernization/debt.md

@@ -550,6 +550,11 @@ agent or engineer to remove them without reconstructing context from chat.
 - 2026-06-12: DEBT-0063 was narrowed again. `NodePopupMenu` mouse-up release and
   destroy now route through the retained popup close helper in
   `src/legacy_ui_overlay_services.*`.
+- 2026-06-12: DEBT-0063 was narrowed again. Layer-row, animation-timeline, and
+  heightmap-overlay drag release paths now route mouse-capture release through
+  `src/legacy_ui_overlay_services.*`, and brush/grid progress or recovery
+  message dialogs now use the retained dialog close helper instead of direct
+  `destroy()` calls. Checked handles and scoped callback ownership remain open.
 - 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

@@ -518,6 +518,9 @@ recording export progress cleanup also route through those helpers.
 Floating-panel close and drag-outline cleanup now use the same retained close
 helper while drag reparenting remains legacy-owned.
 `NodePopupMenu` mouse-up close/release now uses the retained popup close helper.
+Layer-row, animation-timeline, and heightmap-overlay drag release paths now use
+the same retained mouse-capture release helper, and brush/grid progress or
+recovery message dialogs now route through the 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,