Extract cloud download transfer helper

docs/modernization/debt.md

@@ -18,6 +18,13 @@ agent or engineer to remove them without reconstructing context from chat.
 
 ## Recent Reductions
 
+- 2026-06-15: `DEBT-0038` was narrowed again. The retained cloud download
+  URL construction and progress-callback wiring in
+  `execute_cloud_download_thread()` now routes through a focused helper in
+  `src/legacy_cloud_services.cpp` instead of living inline in the retained
+  worker body; the remaining cloud bridge debt stays concentrated in retained
+  prompt/progress lifetime, OpenGL context guarding, and the still-retained
+  transfer-thread execution model.
 - 2026-06-15: `DEBT-0038` was narrowed again. The retained cloud download
   progress-dialog creation path in `execute_cloud_download_thread()` now
   routes through a focused helper in `src/legacy_cloud_services.cpp` instead

docs/modernization/roadmap.md

@@ -187,6 +187,11 @@ The retained cloud download progress-dialog creation path in
 `src/legacy_cloud_services.cpp`, so the remaining cloud bridge debt is
 further concentrated on retained prompt/progress lifetime, OpenGL context
 guarding, and the still-retained transfer-thread execution model.
+The retained cloud download URL construction and progress-callback wiring in
+`execute_cloud_download_thread()` now also routes through a focused helper in
+`src/legacy_cloud_services.cpp`, so the remaining cloud bridge debt is
+further concentrated on retained prompt/progress lifetime, OpenGL context
+guarding, and the still-retained transfer-thread execution model.
 
 Recent 2026-06-13 retained preview reductions continue to narrow DEBT-0036:
 `NodeStrokePreview::draw_stroke_immediate()` now also routes

docs/modernization/tasks.md

@@ -1090,6 +1090,39 @@ Completed Task Log:
 | Date | Task | Score | Validation | Commit |
 | --- | --- | ---: | --- | --- |
 | 2026-06-15 | ADP-028 | no score movement | `MSBuild.exe out\build\windows-msvc-default\panopainter_app.vcxproj /p:Configuration=Debug /p:Platform=x64`; `ctest --preset desktop-fast --build-config Debug -R "pp_app_core_document_cloud" --output-on-failure` | `e993fa48` |
+
+### ADP-029 - Extract Cloud Download Transfer Helper
+
+Status: Done
+Score: no score movement
+Debt: `DEBT-0038`
+Scope: `src/legacy_cloud_services.cpp` only
+
+Goal:
+
+Reduce the inline retained cloud download URL/progress wiring surface by
+extracting the transfer call path from `execute_cloud_download_thread()` into a
+focused helper while preserving current behavior.
+
+Done Checks:
+
+- The retained cloud download URL/progress wiring no longer lives inline in
+  `execute_cloud_download_thread()`.
+- The retained cloud download URL/progress wiring now routes through a focused
+  helper in `src/legacy_cloud_services.cpp`.
+- `DEBT-0038` and the roadmap note the reduced remaining cloud bridge
+  surface.
+
+Validation:
+
+```powershell
+powershell -ExecutionPolicy Bypass -File scripts\automation\quiet-validate.ps1 -BuildTargets pano_cli -TestRegex "pp_app_core_document_cloud"
+```
+
+Completed Task Log:
+
+| Date | Task | Score | Validation | Commit |
+| --- | --- | ---: | --- | --- |
 | 2026-06-15 | ADP-007 | +1 legacy adapter retirement | `ctest --preset desktop-fast --build-config Debug -R "pp_app_core_app_dialog\|pp_ui_core_node_lifetime\|pp_ui_core_overlay_lifetime" --output-on-failure`; `ctest --preset desktop-fast --build-config Debug -R "pp_app_core_main_toolbar" --output-on-failure`; `MSBuild.exe out\build\windows-msvc-default\tests\pp_app_core_main_toolbar_tests.vcxproj /p:Configuration=Debug /p:Platform=x64`; `MSBuild.exe out\build\windows-msvc-default\panopainter_app.vcxproj /p:Configuration=Debug /p:Platform=x64` | `8db859cb` |
 
 ### RND-001 - Make Pure Equirectangular Export The Primary Success Path