Centralize legacy brush package import

docs/modernization/build-inventory.md

@@ -617,8 +617,17 @@ Known local toolchain state:
 - `src/legacy_document_open_services.*` is the current app-shell bridge between
   `pp_app_core` document-open plans and live ABR/PPBR import prompts,
   unsaved-project discard prompts, project opening, layer UI refresh, title
-  updates, and action-history clearing; remaining legacy execution ownership is
-  tracked by `DEBT-0039`.
+  updates, and action-history clearing. Accepted brush import prompts now
+  delegate import execution to `src/legacy_brush_package_import_services.*`;
+  remaining legacy document-open ownership is tracked by `DEBT-0039`.
+- `src/legacy_brush_package_import_services.*` is the current app-shell bridge
+  between `pp_app_core` ABR/PPBR brush package import requests and live
+  `NodePanelBrushPreset::import_abr`/`import_ppbr` execution. It preserves the
+  detached legacy import worker threads and preset-panel storage ownership while
+  brush asset/paint/UI ownership is tracked by `DEBT-0048`.
+- `pp_app_core_brush_package_import_tests` covers ABR and PPBR import kind
+  naming, path validation, service dispatch, and empty-path rejection without
+  requiring a window, brush preset panel, or filesystem read.
 - `src/legacy_document_session_services.*` is the current app-shell bridge
   between `pp_app_core` document-session decisions and live close prompts,
   save dialogs, save-version routing, existing-project saves, and

docs/modernization/debt.md

@@ -56,7 +56,7 @@ agent or engineer to remove them without reconstructing context from chat.
 | DEBT-0036 | Open | Modernization | `pp_renderer_api`, `pp_paint_renderer`, `pano_cli plan-paint-feedback`, and `pano_cli plan-stroke-composite` can choose backend-neutral complex paint feedback strategies for fixed-function blending, framebuffer-fetch-capable renderers, or ping-pong render targets. OpenGL extension detection now stores `pp::renderer::RenderDeviceFeatures` through `ShaderManager`, using `pp_renderer_gl::render_device_features` as the backend conversion point. `pp_paint_renderer::plan_canvas_blend_gate` owns the compatibility mapping from persisted layer/brush blend indices to the extracted stroke-composite planner, and live `Canvas::draw_merge` plus `NodeCanvas` panorama rendering both call it with the stored renderer-neutral feature set for their existing shader-blend gates and destination-copy versus framebuffer-fetch decisions. `pp_paint_renderer::plan_canvas_stroke_feedback` also owns the current destination-feedback decision, and live `Canvas::stroke_draw`, thumbnail layer blending, and `NodeStrokePreview` brush-preview rendering use it for framebuffer-fetch versus destination-copy decisions. Actual live stroke rasterization, dual-brush compositing, pattern feedback math, thumbnail layer compositing, and brush-preview compositing still use legacy OpenGL canvas/UI execution | Preserve current painting behavior while the renderer boundary matures for OpenGL parity and later Vulkan/Metal experiments | `pp_renderer_api_tests`; `pp_renderer_gl_capabilities_tests`; `pp_paint_renderer_compositor_tests`; `pano_cli plan-paint-feedback --framebuffer-fetch --explicit-transitions --render-only`; `pano_cli plan-paint-feedback --texture-copy`; `pano_cli plan-stroke-composite --stroke-blend 10 --framebuffer-fetch --explicit-transitions --render-only`; `pano_cli plan-stroke-composite --layer-blend 4 --dual-blend --texture-copy`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter` | Live stroke/layer compositing chooses its feedback path through `pp_paint_renderer` and renderer services, with OpenGL golden parity and Vulkan/Metal lab tests covering framebuffer-fetch and ping-pong behavior |
 | DEBT-0037 | Open | Modernization | Recording lifecycle/export planning and execution dispatch now consume pure `pp_app_core` through `App::rec_start`, `App::rec_stop`, `App::rec_clear`, `App::rec_export`, `pano_cli plan-recording-session`, and the `RecordingServices` boundary; live execution is centralized in `src/legacy_recording_services.*`, but the bridge still owns legacy recording thread startup/shutdown, platform recorded-file cleanup, progress UI, PBO readback through `App::rec_loop`, and `MP4Encoder::write_mp4` execution | Preserve current timelapse/MP4 behavior while recording moves toward app/document/renderer/video services | `pp_app_core_document_recording_tests`; `pano_cli plan-recording-session --running --frame-count 12`; `pano_cli plan-recording-session --platform-clears-files`; `ctest --preset desktop-fast --build-config Debug` | Recording thread lifecycle, frame readback, platform cleanup, progress reporting, and MP4 writing are owned by injected app/renderer/video services with `App` methods acting only as adapters |
 | DEBT-0038 | Open | Modernization | Cloud upload/browse/bulk planning and execution dispatch now consume pure `pp_app_core` through `App::cloud_upload`, `App::cloud_upload_all`, `App::cloud_browse`, `pano_cli plan-cloud-upload`, `pano_cli plan-cloud-upload-all`, `pano_cli plan-cloud-browse`, and the `CloudServices` boundary; live execution is centralized in `src/legacy_cloud_services.*`, but the bridge still uses legacy save-before-upload, `upload`/`download` network helpers, progress/message UI, OpenGL context guarding, `NodeDialogCloud`, `Canvas` project open, layer refresh, and `ActionManager` reset | Preserve current cloud behavior while cloud/network/document import flows move toward app/document/platform services | `pp_app_core_document_cloud_tests`; `pano_cli plan-cloud-upload --new-document --unsaved`; `pano_cli plan-cloud-browse --selected-file demo.ppi`; `pano_cli plan-cloud-upload-all --file-count 3`; `ctest --preset desktop-fast --build-config Debug` | Cloud upload/download, save-before-upload, progress reporting, cloud browse dialog, downloaded project opening, layer refresh, OpenGL context ownership, and action-history reset are owned by injected app/document/network/platform/renderer services with `App` methods acting only as adapters |
-| DEBT-0039 | Open | Modernization | Document-open planning and execution dispatch now consume pure `pp_app_core` through `App::open_document`, `pano_cli plan-open-route`, `DocumentOpenServices`, and `src/legacy_document_open_services.*`, but the bridge still opens ABR/PPBR import prompts, launches legacy brush preset import threads, applies unsaved-project discard prompts, calls legacy project-open execution, refreshes layer UI, updates the app title, and clears legacy history directly | Preserve current file-open/import behavior while document loading and brush import move toward app/document/asset/UI services | `pp_app_core_document_route_tests`; `pp_app_core_document_session_tests`; `pano_cli plan-open-route --path D:/Paint/Scenes/demo.ppi --unsaved`; `pano_cli plan-open-route --path D:/Paint/Brushes/clouds.ABR --unsaved`; `ctest --preset desktop-fast --build-config Debug` | Brush import prompting/execution, project-open execution, unsaved-project discard prompting, layer refresh, title updates, and history clearing are owned by injected app/document/asset/UI services with `App::open_document` acting only as an adapter |
+| DEBT-0039 | Open | Modernization | Document-open planning and execution dispatch now consume pure `pp_app_core` through `App::open_document`, `pano_cli plan-open-route`, `DocumentOpenServices`, and `src/legacy_document_open_services.*`, but the bridge still opens ABR/PPBR import prompts before delegating import execution to `src/legacy_brush_package_import_services.*`, applies unsaved-project discard prompts, calls legacy project-open execution, refreshes layer UI, updates the app title, and clears legacy history directly | Preserve current file-open/import behavior while document loading and brush import move toward app/document/asset/UI services | `pp_app_core_document_route_tests`; `pp_app_core_document_session_tests`; `pano_cli plan-open-route --path D:/Paint/Scenes/demo.ppi --unsaved`; `pano_cli plan-open-route --path D:/Paint/Brushes/clouds.ABR --unsaved`; `ctest --preset desktop-fast --build-config Debug` | Brush import prompting, project-open execution, unsaved-project discard prompting, layer refresh, title updates, and history clearing are owned by injected app/document/asset/UI services with `App::open_document` acting only as an adapter |
 | DEBT-0040 | Open | Modernization | Close request, document save, and save-before-workflow planning/execution dispatch now consume pure `pp_app_core` through `App::request_close`, `App::save_document`, `App::continue_document_workflow_after_optional_save`, `pano_cli simulate-app-session`, `DocumentSaveServices`, `CloseRequestServices`, `DocumentWorkflowServices`, and `src/legacy_document_session_services.*`, but the bridge still opens legacy message boxes/save dialogs, calls `Canvas::I->project_save`, mutates the unsaved flag on close confirmation, invokes native app close, and routes save-version through the retained legacy dialog | Preserve current close/save/dirty-workflow behavior while document session execution moves toward app/document/UI/platform services | `pp_app_core_document_session_tests`; `pano_cli simulate-app-session --unsaved --save-intent save-dirty-version`; `pano_cli simulate-app-session --no-canvas`; `pano_cli plan-document-file --work-dir D:/Paint --name demo --target-exists`; `pano_cli plan-document-version --directory D:/Paint --doc-name demo.01 --existing-path D:/Paint/demo.02.ppi`; `ctest --preset desktop-fast --build-config Debug` | Close prompt execution, native close requests, dirty-workflow save prompts, existing-project saves, save dialogs, save-version execution, and unsaved-flag mutation are owned by injected app/document/UI/platform services with `App` methods acting only as adapters |
 | DEBT-0041 | Open | Modernization | Accepted new-document planning/execution dispatch now consumes pure `pp_app_core` through `App::dialog_newdoc`, `pano_cli plan-new-document`, `NewDocumentServices`, and `src/legacy_document_session_services.*`, but the bridge still mutates legacy app document fields, clears legacy layer UI, resizes legacy `Canvas`, clears legacy history, creates the default layer through legacy UI, mutates unsaved/new-document flags, updates the title, and handles keyboard/dialog cleanup directly | Preserve current New Document dialog behavior while document creation moves toward app/document/UI services | `pp_app_core_document_session_tests`; `pano_cli plan-new-document --work-dir D:/Paint --name demo --resolution-index 3`; `pano_cli plan-new-document --work-dir D:/Paint --name demo --resolution-index 3 --target-exists`; `pano_cli simulate-app-session --save-intent save`; `ctest --preset desktop-fast --build-config Debug` | New document creation, overwrite confirmation, canvas/document allocation, default layer creation, history clearing, title updates, dirty/new-document state, and keyboard/dialog cleanup are owned by injected app/document/UI services with `App::dialog_newdoc` acting only as a UI adapter |
 | DEBT-0042 | Open | Modernization | Accepted Save As and Save Version planning/execution dispatch now consumes pure `pp_app_core` through `App::dialog_save`, `App::dialog_save_ver`, `pano_cli plan-document-file`, `pano_cli plan-document-version`, `DocumentFileSaveServices`, `DocumentVersionSaveServices`, and `src/legacy_document_session_services.*`, but the bridge still opens legacy overwrite prompts, calls legacy `Canvas::project_save`, mutates app document name/path/directory fields, marks version saves dirty before saving, updates the title, and handles keyboard/dialog cleanup directly | Preserve current Save As and Save Version behavior while document persistence moves toward app/document/storage/UI services | `pp_app_core_document_session_tests`; `pano_cli plan-document-file --work-dir D:/Paint --name demo --target-exists`; `pano_cli plan-document-version --directory D:/Paint --doc-name demo.01 --existing-path D:/Paint/demo.02.ppi`; `pano_cli simulate-app-session --save-intent save-as`; `pano_cli simulate-app-session --save-intent save-version`; `ctest --preset desktop-fast --build-config Debug` | Save As overwrite prompting, project-save execution, app document metadata updates, title updates, version-save dirty-state handling, and keyboard/dialog cleanup are owned by injected app/document/storage/UI services with `App::dialog_save` and `App::dialog_save_ver` acting only as UI adapters |
@@ -65,6 +65,7 @@ agent or engineer to remove them without reconstructing context from chat.
 | DEBT-0045 | Open | Modernization | Options-menu preference execution now consumes pure `pp_app_core` through UI scale, viewport scale, RTL direction, VR mode, VR-controller, auto-timelapse, and canvas cursor-mode callbacks plus `AppPreferenceServices` and `src/legacy_app_preference_services.*`, but the bridge still calls legacy `App::set_ui_scale`, `App::set_ui_rtl`, `App::vr_start`, `App::vr_stop`, `NodeCanvas::set_density`, `NodeCanvas::set_cursor_visibility`, `App::rec_start`, `App::rec_stop`, and `Settings::save` directly | Preserve current options-menu behavior while preferences move toward app/UI/platform/storage services | `pp_app_core_app_preferences_tests`; `pano_cli plan-app-preferences --ui-scale 1.5 --display-density 2 --current-scale 1.6 --scale-option 1 --scale-option 1.5 --rtl`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter` | Preference persistence, UI/layout direction, viewport density, cursor mode, VR mode start/stop/failure handling, VR-controller state, and auto-timelapse recording side effects are owned by injected app/UI/platform/storage services with options-menu callbacks acting only as UI adapters |
 | DEBT-0046 | Open | Modernization | Startup preference/runtime execution now consumes pure `pp_app_core` through `App::init`, `pano_cli plan-app-startup`, `AppStartupServices`, and `src/legacy_app_startup_services.*`, but the bridge still calls legacy `Settings::set`, `Settings::save`, `App::rec_start`, app VR-controller state mutation, and message-box license warning execution directly | Preserve current startup behavior while app startup moves toward app/preferences/storage/recording/UI services | `pp_app_core_app_startup_tests`; `pano_cli plan-app-startup --run-counter 7 --vr-controllers-disabled --license-invalid`; `pano_cli plan-app-startup --run-counter -1`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter` | Startup preference persistence, auto-timelapse startup, stored VR-controller state, license validation/warning, and startup UI/runtime side effects are owned by injected app/preferences/storage/recording/UI services with `App::init` acting only as orchestration |
 | DEBT-0047 | Open | Modernization | PPBR brush package export request validation and execution dispatch now consume pure `pp_app_core` through `App::dialog_ppbr_export`, `pano_cli plan-brush-package-export`, `BrushPackageExportServices`, and `src/legacy_brush_package_export_services.*`, but the bridge still reads `NodeDialogExportPPBR`, carries the legacy `Image` header object outside the pure request, converts to `NodePanelBrushPreset::PPBRInfo`, calls `NodePanelBrushPreset::export_ppbr`, owns desktop worker-thread dispatch, dialog destruction, mobile/Web completion, and success-message behavior directly | Preserve current PPBR export behavior while brush assets, PPBR serialization, picker completion, and UI lifetime move toward asset/storage/UI/platform services | `pp_app_core_brush_package_export_tests`; `pano_cli plan-brush-package-export --path D:/Paint/clouds.ppbr --author Artist --dest-path D:/Paint/BrushPreviews --export-data --header-image`; `pano_cli plan-brush-package-export`; `pano_cli plan-brush-package-export --path D:/Paint/clouds.ppbr --dest-path D:/Paint/BrushPreviews --no-export-data`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter` | PPBR metadata collection, header-image ownership, serialization, picker-selected path execution, desktop threading, dialog lifetime, and success UI are owned by injected brush asset/storage/UI/platform services with `App::dialog_ppbr_export` acting only as a UI adapter |
+| DEBT-0048 | Open | Modernization | ABR/PPBR brush package import execution now consumes pure `pp_app_core` through document-open confirmation callbacks, `pano_cli plan-brush-package-import`, `BrushPackageImportServices`, and `src/legacy_brush_package_import_services.*`, but the bridge still launches detached legacy `NodePanelBrushPreset::import_abr`/`import_ppbr` worker threads and depends on the legacy preset panel as the importer/storage owner | Preserve current brush import behavior while brush package parsing, preset storage, progress/error reporting, and UI refresh move toward asset/paint/UI services | `pp_app_core_brush_package_import_tests`; `pano_cli plan-brush-package-import --kind ppbr --path D:/Paint/Brushes/clouds.ppbr`; `pano_cli plan-brush-package-import --kind abr --path D:/Paint/Brushes/clouds.abr`; `pano_cli plan-brush-package-import --kind ppbr`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter` | ABR/PPBR parsing, preset creation/storage, import threading/progress, duplicate asset policy, and UI refresh are owned by injected brush asset/paint/UI services with document-open callbacks only confirming user intent |
 
 ## Closed Debt
 

docs/modernization/roadmap.md

@@ -746,7 +746,11 @@ behind the renderer boundary.
 `src/legacy_document_open_services.*`, preserving ABR/PPBR import prompts,
 unsaved-project discard prompts, project open, layer refresh, title updates,
 and history clearing while those live effects remain tracked under
-`DEBT-0039`.
+`DEBT-0039`. Accepted ABR/PPBR import prompts now delegate import execution to
+the app-core brush package import executor and
+`src/legacy_brush_package_import_services.*`, preserving detached legacy preset
+panel import threads while retained brush asset execution remains tracked under
+`DEBT-0048`.
 `App::request_close`, `App::save_document`, and
 `App::continue_document_workflow_after_optional_save` now route through
 app-core document-session executors and `src/legacy_document_session_services.*`,
@@ -1383,6 +1387,15 @@ Results:
   `pano_cli_plan_brush_package_export_smoke`,
   `pano_cli_plan_brush_package_export_rejects_empty_path`, and
   `pano_cli_plan_brush_package_export_dest_without_data_smoke`.
+- `PanoPainter`, `pp_app_core_brush_package_import_tests`, and `pano_cli` built
+  after ABR/PPBR brush package import execution moved behind app-core brush
+  import services.
+- Focused brush import CTest coverage passed for
+  `pp_app_core_brush_package_import_tests`,
+  `pano_cli_plan_brush_package_import_ppbr_smoke`,
+  `pano_cli_plan_brush_package_import_abr_smoke`,
+  `pano_cli_plan_brush_package_import_rejects_empty_path`, and
+  `pano_cli_plan_brush_package_import_rejects_unknown_kind`.
 - `pp_app_core_document_recording_tests` passed, covering recording start/stop,
   clear, platform recorded-file cleanup, frame-count reset, export progress
   totals, and oversized progress-total clamping.