Extract cloud download flow helper

docs/modernization/tasks.md

@@ -1162,6 +1162,39 @@ Completed Task Log:
 | Date | Task | Score | Validation | Commit |
 | --- | --- | ---: | --- | --- |
 | 2026-06-15 | ADP-030 | no score movement | `powershell -ExecutionPolicy Bypass -File scripts\\automation\\quiet-validate.ps1 -BuildTargets pano_cli -TestRegex "pp_app_core_document_cloud"` | `2b8c11bf` |
+
+### ADP-031 - Extract Cloud Download Flow Helper
+
+Status: Done
+Score: no score movement
+Debt: `DEBT-0038`
+Scope: `src/legacy_cloud_services.cpp` only
+
+Goal:
+
+Reduce the inline retained cloud download worker body by extracting the
+remaining flow path from `execute_cloud_download_thread()` into a focused
+helper while preserving current behavior.
+
+Done Checks:
+
+- The retained cloud download worker body no longer lives inline in
+  `execute_cloud_download_thread()`.
+- The retained cloud download worker body 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