Extract app dialog and binding service seams

docs/modernization/debt.md

@@ -791,6 +791,27 @@ agent or engineer to remove them without reconstructing context from chat.
   no longer self-destroy their cancel/OK buttons through
   `bind_legacy_click_destroys_node(...)`; menu/layout-owned popup families still
   remain on separate retained cleanup paths.
+- 2026-06-17: `DEBT-0058`/`DEBT-0063` were narrowed again. The retained
+  usermanual, changelog, and about openers in `src/app_dialogs_info_openers.cpp`
+  now delegate retained dialog construction and overlay close wiring through
+  `src/legacy_info_dialog_services.*` with explicit `App&` plus overlay-anchor
+  dependencies, so the app dialog shell no longer owns that info-dialog family
+  inline while `open_whatsnew_dialog()` still owns the retained whats-new flow
+  inline.
+- 2026-06-17: `DEBT-0058`/`DEBT-0063` were narrowed again. The retained New
+  Document and Save dialog openers in `src/app_dialogs_workflow.cpp` now
+  delegate retained dialog construction and button wiring through
+  `src/legacy_document_session_services.*` with explicit `App&` ownership, so
+  the app dialog shell no longer owns that document-session dialog family
+  inline while browse, open, and resize flows still remain there.
+- 2026-06-17: `DEBT-0035` was narrowed again. `App::title_update()` and the
+  draw-toolbar/stroke-popup binding families now delegate through
+  `src/legacy_app_status_services.*`,
+  `src/legacy_draw_toolbar_binding_services.*`, and
+  `src/legacy_sidebar_stroke_popup_services.*`, so
+  `src/app_layout.cpp`, `src/app_layout_draw_toolbar.cpp`, and part of
+  `src/app_layout_sidebar.cpp` are thinner adapters while retained app-shell
+  execution and remaining popup families still stay open under the same debt.
 - 2026-06-15: `DEBT-0036` was narrowed again. `NodeStrokePreview` now drops the
   retained pass-sequence, mix-execution, final-composite-request, background
   capture, and preview-copy wrapper structs/functions in favor of direct

docs/modernization/roadmap.md

@@ -92,6 +92,13 @@ Current conclusion:
   routes through `src/legacy_app_ui_state_services.*`, so more of the retained
   app shell is down to adapter calls even though runtime draw/event/sidebar
   execution still remains.
+- New-document/save dialog session wiring, app-title rendering, draw-toolbar
+  binding, sidebar stroke-popup binding, and usermanual/changelog/about opener
+  wiring now live in dedicated `legacy_*services.*` seams, so
+  `src/app_dialogs_workflow.cpp`, `src/app_layout.cpp`,
+  `src/app_layout_draw_toolbar.cpp`, `src/app_layout_sidebar.cpp`, and
+  `src/app_dialogs_info_openers.cpp` are thinner adapters even though broader
+  retained dialog/sidebar execution still remains.
 - Platform extraction improved substantially and the root app source group no
   longer compiles Web platform sources directly, but broader CMake and
   entrypoint cleanup are not complete.

docs/modernization/tasks.md

@@ -101,6 +101,29 @@ Key facts:
   `App&`, popup-root, trigger-button, and panel dependencies, so
   `src/app_layout_sidebar.cpp` is thinner while the retained stroke/grid/layer
   popup families still remain inline.
+- `App::dialog_usermanual()`, `App::dialog_changelog()`, and
+  `App::dialog_about()` now delegate the retained info-dialog construction and
+  overlay close wiring through `src/legacy_info_dialog_services.*` with
+  explicit `App&` plus overlay-anchor dependencies, so
+  `src/app_dialogs_info_openers.cpp` is thinner while `open_whatsnew_dialog()`
+  still owns the retained whats-new flow inline.
+- `App::dialog_newdoc()` and `App::dialog_save()` now delegate retained dialog
+  construction and button wiring through `src/legacy_document_session_services.*`,
+  so `src/app_dialogs_workflow.cpp` is thinner at the document-session seam
+  while browse, open, and resize retained workflows still remain there.
+- `App::title_update()` now delegates retained document-title and DPI-label
+  rendering through `src/legacy_app_status_services.*`, so
+  `src/app_layout.cpp` no longer owns that app-status family inline.
+- `App::init_toolbar_draw()` now delegates retained draw-toolbar button lookup,
+  click wiring, and default-tool application through
+  `src/legacy_draw_toolbar_binding_services.*`, so
+  `src/app_layout_draw_toolbar.cpp` is down to a thin adapter while retained
+  tool execution still flows through `src/legacy_canvas_tool_services.*`.
+- `App::init_sidebar()` now delegates the retained stroke-popup open/anchor/tick
+  wiring through `src/legacy_sidebar_stroke_popup_services.*` with explicit
+  `App&`, popup-root, trigger-button, and panel dependencies, so
+  `src/app_layout_sidebar.cpp` is thinner while the retained grid and layer
+  popup families still remain inline.
 
 ## Parallel Assignment Rules