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# Modernization Debt Log
Status: live
Last updated: 2026-06-04
Every shortcut, temporary adapter, retained vendored dependency, skipped
platform gate, compatibility shim, or incomplete automation path must be
recorded here before it lands. Entries must be specific enough for a future
agent or engineer to remove them without reconstructing context from chat.
## Entry Rules
- Add an entry before merging the shortcut.
- Reference the debt id in code comments, TODOs, ADRs, or roadmap notes.
- Include an owner, reason, validation command, and removal condition.
- Do not close an entry until the removal condition is met and validated.
- Prefer deleting shortcuts over expanding this log.
## Open Debt
| ID | Status | Owner | Item | Reason | Validation | Removal Condition |
| --- | --- | --- | --- | --- | --- | --- |
| DEBT-0001 | Open | Modernization | Existing platform build files remain alongside new CMake | Required for incremental migration without losing platform coverage | Existing platform builds plus new CMake configure | Remove after all platform builds consume shared CMake targets |
| DEBT-0002 | Open | Modernization | Vendored SDK and patched libraries retained initially | Some dependencies are SDK-only, patched, or have platform-specific binaries | Dependency inventory and platform build smoke tests | Replace with vcpkg packages or document permanent vendored status after triplet evaluation |
| DEBT-0003 | Open | Modernization | Existing singletons remain during initial split; `App::open_document`, `App::request_close`, `App::share_file`, `App::cloud_upload`, `App::cloud_upload_all`, `App::cloud_browse`, `App::rec_start`, `App::rec_stop`, `App::rec_clear`, `App::rec_export`, file-menu save actions, `NodeCanvas` canvas hotkeys, new/open/browse dirty-document workflow prompts, new-document target/resolution/overwrite decisions, save-as document file naming and overwrite decisions, save-version target decisions, export start/menu/target naming/path decisions, share-file saved-path decisions, file/image/save/directory picker selected-path decisions, display-file external-open decisions, virtual-keyboard visibility decisions, recording lifecycle/export progress decisions, cloud-upload prompt/save-before-upload decisions, cloud-browse availability and selected-download decisions, bulk cloud-upload progress decisions, tools/options app preference decisions, app status/display and renderer diagnostic decisions, document resize decisions, layer rename/menu decisions, Tools menu/panel decisions, About menu/diagnostic decisions, main toolbar/status decisions, `pano_cli classify-open`, `pano_cli plan-open-route`, `pano_cli plan-file-menu`, `pano_cli plan-new-document`, `pano_cli plan-document-file`, `pano_cli plan-document-version`, `pano_cli plan-export-start`, `pano_cli plan-export-menu`, `pano_cli plan-export-target`, `pano_cli plan-recording-session`, `pano_cli plan-app-preferences`, `pano_cli plan-app-status`, `pano_cli plan-tools-menu`, `pano_cli plan-tools-panel`, `pano_cli plan-about-menu`, `pano_cli plan-main-toolbar`, `pano_cli plan-document-resize`, `pano_cli plan-layer-rename`, `pano_cli plan-layer-menu`, `pano_cli plan-canvas-hotkey`, `pano_cli plan-share-file`, `pano_cli plan-picked-path`, `pano_cli plan-display-file`, `pano_cli plan-keyboard-visibility`, `pano_cli plan-cloud-upload`, `pano_cli plan-cloud-browse`, `pano_cli plan-cloud-upload-all`, and `pano_cli simulate-app-session` now consume pure `pp_app_core` route/session/export/recording/preferences/status/share/platform-I/O/display/keyboard/cloud/resize/layer/tools/about/toolbar/canvas-command contracts, but document creation/loading, brush import execution, saving, export execution, tools/options UI execution, Tools panel creation/execution, About dialog/diagnostic execution, toolbar/status dialog/history/canvas execution, status/display UI rendering, renderer diagnostic capability adaptation, document resize execution, layer rename/menu execution, settings persistence, platform share service execution, picker service execution, display-file service execution, keyboard service execution, recording/MP4 execution, cloud upload execution, and cloud browse/download execution still reach legacy `Canvas::I`/UI/network/video/platform singletons | Avoid behavior changes while introducing component boundaries | App launch and component tests; `pp_app_core_document_route_tests`; `pp_app_core_file_menu_tests`; `pp_app_core_document_export_tests`; `pp_app_core_document_recording_tests`; `pp_app_core_app_preferences_tests`; `pp_app_core_app_status_tests`; `pp_app_core_tools_menu_tests`; `pp_app_core_about_menu_tests`; `pp_app_core_main_toolbar_tests`; `pp_app_core_document_resize_tests`; `pp_app_core_document_layer_tests`; `pp_app_core_document_sharing_tests`; `pp_app_core_document_platform_io_tests`; `pp_app_core_document_cloud_tests`; `pp_app_core_document_session_tests`; `pp_app_core_canvas_hotkey_tests`; `pano_cli classify-open --path D:/Paint/demo.ppi`; `pano_cli plan-open-route --path D:/Paint/demo.ppi --unsaved`; `pano_cli plan-file-menu --command save-as`; `pano_cli plan-new-document --work-dir D:/Paint --name demo --resolution-index 3 --target-exists`; `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 plan-export-start --requires-license --demo`; `pano_cli plan-export-menu --kind animation-mp4 --demo`; `pano_cli plan-export-target --kind file --work-dir D:/Paint --doc-name demo --extension .png`; `pano_cli plan-recording-session --running --frame-count 12`; `pano_cli plan-app-preferences --ui-scale 1.5 --display-density 2 --current-scale 1.6 --scale-option 1 --scale-option 1.5 --rtl`; `pano_cli plan-app-status --doc-name demo --unsaved --resolution 2048 --resolution-index 3 --zoom 1.25 --history-bytes 1572864 --recording-running --encoder-available --encoded-frames 12 --framebuffer-fetch --float32 --float32-linear --float16`; `pano_cli plan-tools-menu --command shortcuts`; `pano_cli plan-tools-panel --panel layers`; `pano_cli plan-about-menu --command news --version-major 2 --version-minor 5 --version-fix 7`; `pano_cli plan-main-toolbar --command undo --undo-count 2`; `pano_cli plan-document-resize --current-resolution 2048 --selected-resolution-index 4`; `pano_cli plan-layer-rename --old-name Base --new-name Paint`; `pano_cli plan-layer-menu --command merge --current-index 2 --lower-name Paint`; `pano_cli plan-canvas-hotkey --event key-up --key z --ctrl --undo-count 2`; `pano_cli plan-share-file --path D:/Paint/demo.ppi`; `pano_cli plan-picked-path --path D:/Paint/demo.ppi`; `pano_cli plan-display-file --path D:/Paint/export.png`; `pano_cli plan-keyboard-visibility --visible`; `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`; `pano_cli simulate-app-session --unsaved --save-intent save-dirty-version`; `pano_cli simulate-app-session --no-canvas`; `ctest --preset desktop-fast --build-config Debug` | Replace singleton reaches with context/service injection at component boundaries |
| DEBT-0004 | Open | Modernization | Android, Linux, WebGL, Apple, and AppX build files remain platform-specific until root CMake alignment reaches them | Prevent platform regressions during incremental migration; raw Windows `.sln/.vcxproj` files were removed on 2026-05-31 by user decision | `cmake --preset windows-msvc-default`; platform-specific configure/build smoke checks as each platform is migrated | Root CMake owns every platform source list and package path |
| DEBT-0005 | Open | Modernization | Temporary local CTest harness is used before Catch2 is wired through vcpkg | `vcpkg` is not currently on PATH, but headless tests need to run now | `ctest --preset desktop-fast --build-config Debug` | Replace `tests/test_harness.h` tests with Catch2 tests once vcpkg toolchain/presets are validated |
| DEBT-0007 | Open | Modernization | `vcpkg.json` and `windows-msvc-vcpkg-headless` are validated for the headless Windows component matrix, but app targets still use vendored libraries and Android/Apple triplets are not proven | Dependency migration must stay incremental while SDK/patched/vendor dependencies remain in use | `$env:VCPKG_ROOT="C:\Program Files\Microsoft Visual Studio\2022\Community\VC\vcpkg"; cmake --preset windows-msvc-vcpkg-headless`; `ctest --preset desktop-fast-vcpkg --build-config Debug` | Component targets consume vcpkg packages where reliable and desktop app, Android, and Apple triplets are validated or explicitly documented as permanent vendor exceptions |
| DEBT-0008 | Open | Modernization | `windows-msvc-default` preset is used for local validation because the VS 2026 generator is not installed here | The target VS 2026 preset must remain, but this machine configures with Visual Studio 17 2022 | `cmake --preset windows-msvc-default`; `ctest --preset desktop-fast --build-config Debug` | Validate `windows-vs2026-x64` on a machine with Visual Studio 2026 installed and make it the default Windows validation preset |
| DEBT-0009 | Open | Modernization | Android root CMake validation currently builds headless targets only, not APK/package variants; standard arm64/x64, Quest arm64, and Focus/Wave arm64 have named root build presets and share the refreshed `platform-build` component matrix | Platform app entrypoints still live in legacy Gradle/CMake projects and need Phase 6 alignment | `powershell -ExecutionPolicy Bypass -File scripts\automation\platform-build.ps1 -Presets android-arm64`; `cmake --build --preset android-x64`; `cmake --build --preset android-quest-arm64`; `cmake --build --preset android-focus-arm64` | Android standard, Quest, and Focus/Wave package targets consume shared component targets and have package smoke commands |
| DEBT-0010 | Open | Modernization | `pp_document` is a pure layer/frame/document/undo-history model with alpha-lock metadata, snapshot construction, per-layer frame metadata, renderer-free RGBA8 face payload storage, snapshot-embedded face-payload validation, renderer-free alpha8 selection-mask storage, PPI import/export helpers, and stroke-script-to-face-payload CLI automation, but it is not yet wired to legacy `Canvas`, legacy save, or legacy action commands | Keep extraction incremental while preserving app behavior | `ctest --preset desktop-fast --build-config Debug`; `pano_cli create-document --width 64 --height 32 --layers 2`; `pano_cli load-project --path tests\data\projects\minimal-project.ppi`; `pp_document_tests`; `pp_document_ppi_import_tests`; `pp_document_ppi_export_tests`; `pano_cli_simulate_document_edits_smoke`; `pano_cli_simulate_document_export_smoke`; `pano_cli_save_document_project_roundtrip_smoke`; `pano_cli_apply_stroke_script_roundtrip_smoke`; `pano_cli_apply_stroke_script_rejects_tiny_canvas` | Legacy document behavior is represented by `pp_document` tests and the app consumes it through a boundary/facade |
| DEBT-0011 | Open | Modernization | `package-smoke` validates the Windows CMake app artifact and now reports a structured package readiness matrix for Windows AppX, Android standard/Quest/Focus APKs, Apple bundles, and WebGL output, but those package outputs are still `blocked` because root CMake package targets do not exist yet | Platform package targets are not migrated to root CMake yet | `powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug`; `bash -n scripts/automation/package-smoke.sh` | Package-smoke builds and validates Windows AppX, Android APK variants, Apple bundles, and WebGL output where local toolchains are present |
| DEBT-0012 | Open | Modernization | `pp_ui_core` uses vcpkg tinyxml2 on `windows-msvc-vcpkg-headless`, but retains `pp_vendor_tinyxml2` for default and unproven platform presets | Mobile/AppX/Apple triplets and app packaging still need validation before removing the vendored fallback | `ctest --preset desktop-fast-vcpkg --build-config Debug`; `ctest --preset desktop-fast --build-config Debug`; `powershell -ExecutionPolicy Bypass -File scripts\automation\platform-build.ps1 -Presets android-arm64` | All supported presets consume vcpkg tinyxml2 or document a permanent vendored exception |
| DEBT-0013 | Open | Modernization | `pp_assets`, `pp_document`, `pano_cli inspect-project`, `pano_cli load-project`, and `pano_cli save-project` validate the fixed PPI header, thumbnail/body byte layout, generated multi-layer/multi-frame PPI writing with explicit layer opacity/blend/alpha-lock/visibility metadata, per-layer frame durations, metadata-only and targeted dirty-face-payload save/load round-trips, layer/frame index, dirty-face descriptors, dirty-face PNG payload metadata, asset-level RGBA PNG payload decoding, pure document-to-PPI export, CLI document export automation, file-writing document export automation, stroke-script-generated document payload export, and decoded pixel attachment to `pp_document`, but full legacy PPI round-trip parity is not yet extracted | Full PPI save parity requires staged extraction of legacy `Canvas` serialization and image/layer payload handling | `ctest --preset desktop-fast --build-config Debug`; `pp_assets_image_pixels_tests`; `pp_assets_ppi_header_tests`; `pp_document_ppi_import_tests`; `pp_document_ppi_export_tests`; `pano_cli_inspect_project_layout_smoke`; `pano_cli_load_project_metadata_smoke`; `pano_cli_save_project_roundtrip_smoke`; `pano_cli_save_project_payload_roundtrip_smoke`; `pano_cli_simulate_document_export_smoke`; `pano_cli_save_document_project_roundtrip_smoke`; `pano_cli_apply_stroke_script_roundtrip_smoke`; `pano_cli_apply_stroke_script_rejects_tiny_canvas` | Full PPI load/save fixtures cover thumbnails, decoded layer face payloads attached to documents, frames, corrupt payloads, dirty-face payload saving, arbitrary legacy canvas payload/layout combinations, and legacy app round-trip compatibility |
| DEBT-0014 | Open | Modernization | `windows-clangcl-asan` now configures as a headless Ninja/clang-cl preset and uses the release MSVC runtime required by ASan, but local builds still fail because installed clang-cl 18.1.8 is paired with VS 2026-preview STL headers that require Clang 20 or newer | Sanitizer validation should be local and repeatable, but this machine's compiler/header pairing is incompatible | `cmake --fresh --preset windows-clangcl-asan`; `cmake --build --preset windows-clangcl-asan --target pp_foundation` | Install/use Clang 20+ with the VS 2026 STL, or point the preset at a compatible VS 2022 toolchain, then make `platform-build.ps1 -Presets windows-clangcl-asan` pass for the headless matrix |
| DEBT-0015 | Open | Modernization | Cursor visibility requests now consume pure `pp_app_core` planning through `pano_cli plan-cursor-visibility`, `App::show_cursor`/`App::hide_cursor` dispatch through `PlatformServices` without platform guards, and Windows live execution uses injected `WindowsPlatformServices`, but macOS cursor execution still reaches the retained fallback adapter | Keep canvas cursor behavior stable while platform shells are extracted incrementally | `pp_app_core_document_platform_io_tests`; `pano_cli plan-cursor-visibility --visible`; `ctest --preset desktop-fast --build-config Debug` | Cursor visibility execution is owned by injected `pp_platform_*` services for every supported platform |
| DEBT-0016 | Open | Modernization | Clipboard get/set requests now consume pure `pp_app_core` planning through `pano_cli plan-clipboard-read` and `pano_cli plan-clipboard-write`, and Windows live execution uses injected `WindowsPlatformServices`, but Apple/Android clipboard execution still reaches retained fallback adapter branches from `App::clipboard_get_text` and `App::clipboard_set_text` | Keep picker/color text clipboard behavior stable while platform shells are extracted incrementally | `pp_app_core_document_platform_io_tests`; `pano_cli plan-clipboard-write --text #ff00aa`; `ctest --preset desktop-fast --build-config Debug` | Clipboard execution is owned by injected `pp_platform_*` services for every supported platform |
| DEBT-0017 | Open | Modernization | Startup storage path preparation, `App::clipboard_get_text`, `App::clipboard_set_text`, `App::show_cursor`, `App::hide_cursor`, `App::showKeyboard`, `App::hideKeyboard`, `App::display_file`, `App::share_file`, native app/window close, UI-thread lifecycle hooks, render-context acquire/release/present hooks, render-target binding hooks, render platform hint hooks, render debug callback hooks, render-capture frame hooks, recording cleanup, live asset/layout reload policy, diagnostic stacktrace/crash hooks, per-frame platform hooks, `App::pick_image`, `App::pick_file`, the non-writer `App::pick_file_save`, `App::pick_dir`, prepared-file save/download handoff, work-directory document export collection policy, and app network TLS verification policy now call the SDK-free `pp::platform::PlatformServices` interface, and Windows injects `WindowsPlatformServices` from `src/platform_windows/windows_platform_services.*`; non-Windows live implementations still use `src/platform_legacy/legacy_platform_services.*`, a named fallback adapter that forwards to retained Apple/Android/Linux/Web bridge functions and retained no-op branches, including the retained Android TLS-verification bypass for current app curl helpers | Preserve behavior while moving platform execution behind a testable service boundary before platform shell implementations are injected | `pp_platform_api_tests`; `pp_app_core_document_export_tests`; `pp_app_core_document_platform_io_tests`; `ctest --preset desktop-fast --build-config Debug`; `powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug` | Replace `src/platform_legacy/legacy_platform_services.*` with injected `pp_platform_*` service implementations owned by each non-Windows platform shell |
| DEBT-0019 | Open | Modernization | Unreferenced-parameter warnings are muted globally through `pp_project_warnings` with MSVC `/wd4100` and Clang/GCC `-Wno-unused-parameter` | Legacy callbacks, virtual hooks, serializer methods, and platform/API compatibility functions carry many intentionally unused parameters during the component split; muting this keeps stricter warning builds focused on higher-signal migration issues | `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset linux-clang --target pp_foundation` | Remove `/wd4100` and `-Wno-unused-parameter`, mark intentionally unused parameters with names/comments or `[[maybe_unused]]`, and make the Windows app plus headless Clang/GCC tests pass without unreferenced-parameter warnings |
| DEBT-0020 | Open | Modernization | Document resize dialog state, selected-resolution planning, and execution dispatch now consume pure `pp_app_core` through `NodeDialogResize`, `App::dialog_resize`, `pano_cli plan-document-resize`, and the `DocumentResizeServices` boundary, and live resize shares `src/legacy_document_canvas_services.*` with canvas clear commands, but the shared live bridge still calls legacy `Canvas::resize`, updates the legacy app title, and clears legacy `ActionManager` history through the history bridge | Preserve existing layer/frame GPU resize behavior while the document model and canvas execution boundary are extracted incrementally | `pp_app_core_document_resize_tests`; `pano_cli plan-document-resize --current-resolution 2048 --selected-resolution-index 4`; `ctest --preset desktop-fast --build-config Debug` | Document resize execution is owned by injected document/app services with no legacy resize adapter, title shim, or direct `ActionManager` history clearing |
| DEBT-0021 | Open | Modernization | Layer rename planning/execution dispatch and layer panel operation planning/execution dispatch now consume pure `pp_app_core` through `App::dialog_layer_rename`, `App::init_sidebar` layer callbacks, `pano_cli plan-layer-rename`, `pano_cli plan-layer-operation`, `DocumentLayerRenameServices`, and `DocumentLayerOperationServices`, and the live execution adapters are centralized in `src/legacy_document_layer_services.*`, but that shared bridge still mutates legacy `Canvas` layer state, `NodeLayer`/`NodePanelLayer`, and `ActionManager` undo entries | Preserve existing UI/canvas behavior while document layer commands and undo history are extracted incrementally | `pp_app_core_document_layer_tests`; `pano_cli plan-layer-rename --old-name Base --new-name Paint`; `pano_cli plan-layer-operation --kind add --layer-count 2 --index 1 --name Paint`; `ctest --preset desktop-fast --build-config Debug` | Layer command execution is owned by the document/app command boundary with legacy `Canvas`/UI nodes acting only as adapters or removed entirely |
| DEBT-0022 | Open | Modernization | Animation panel frame command planning, panel action planning, panel-control/timeline execution dispatch, selected-frame click dispatch, playback tick stepping, and play-mode toggles now consume pure `pp_app_core` through `NodePanelAnimation`, `pano_cli plan-animation-operation`, `pano_cli plan-animation-panel-action`, and `DocumentAnimationServices`; live execution is centralized in `src/legacy_document_animation_services.*`, but that bridge still mutates or reads legacy `Canvas`/`Layer` frame state, canvas mode, animation-panel timeline/playback fields, and uses a temporary `NodePanelAnimation` friend adapter | Preserve existing animation panel behavior while timeline/frame commands move toward the document/app command boundary | `pp_app_core_document_animation_tests`; `pano_cli plan-animation-operation --kind add --frame-count 2 --current-frame 0`; `pano_cli plan-animation-operation --kind select --frame-count 3 --selected-frame 1 --layer-index 2 --layer-id 42`; `pano_cli plan-animation-operation --kind playback --total-duration 5 --current-frame 4 --offset 1`; `pano_cli plan-animation-operation --kind toggle-playback --playing`; `pano_cli plan-animation-panel-action --action next --total-duration 5 --current-frame 4`; `ctest --preset desktop-fast --build-config Debug` | Animation frame/timeline/playback execution is owned by injected document/app timeline services with no legacy `Canvas`/`Layer`/canvas-mode adapter and UI nodes acting only as adapters or removed entirely |
| DEBT-0023 | Open | Modernization | Brush/color/preset/stroke-settings UI planning, texture-list add/remove/reorder planning, brush preset-list add/select/move/remove/clear planning, stroke-panel slider/toggle/blend/reset planning, and execution dispatch now consume pure `pp_app_core` through `App::init_sidebar`, `NodePanelBrush`, `NodePanelBrushPreset`, `NodePanelStroke`, restored/docked floating-panel callbacks, `pano_cli plan-brush-operation`, `pano_cli plan-brush-texture-list`, `pano_cli plan-brush-preset-list`, `pano_cli plan-brush-stroke-control`, `BrushUiServices`, `BrushTextureListServices`, `BrushPresetListServices`, and `BrushStrokeControlServices`, and live execution is centralized in `src/legacy_brush_ui_services.*` or narrow legacy service bridges where possible, but preset-list execution still mutates legacy `NodePanelBrushPreset` child nodes directly while the bridge still mutates legacy `Brush`/`Canvas::I`, loads/saves legacy brush texture images, refreshes legacy quick/stroke/color widgets, and uses temporary `NodePanelBrush`/`NodePanelBrushPreset` friend adapters to reach private list state | Preserve existing brush UI behavior while brush commands move toward a brush/app/asset command boundary and asset-managed texture/preset selection | `pp_app_core_brush_ui_tests`; `pano_cli plan-brush-operation --kind color --r 0.25 --g 0.5 --b 0.75 --a 1`; `pano_cli plan-brush-operation --kind pattern --path data/patterns/noise.png --thumb data/patterns/thumbs/noise.png`; `pano_cli plan-brush-texture-list --kind add --dir brushes --data-path data --source C:/Temp/soft.png`; `pano_cli plan-brush-preset-list --kind remove --item-count 1 --current-index 0`; `pano_cli plan-brush-stroke-control --kind float --setting tip-size --value 42.5`; `pano_cli plan-brush-stroke-control --kind blend --setting pattern --blend-mode 3`; `ctest --preset desktop-fast --build-config Debug` | Brush color/texture/preset/stroke-settings, texture-list, preset-list, and stroke-control execution are owned by injected brush/app/asset/UI services with no legacy brush/canvas adapter, direct `NodePanelBrushPreset` child mutation, or brush-panel friend access |
| DEBT-0024 | Open | Modernization | Grid/heightmap/lightmap UI planning and execution dispatch now consume pure `pp_app_core` through `NodePanelGrid`, `pano_cli plan-grid-operation`, and the `GridUiServices` boundary; live execution is centralized in `src/legacy_grid_ui_services.*`, but the bridge still performs legacy image loading, OpenGL texture updates, nanort lightmap baking/progress, and `Canvas::draw_objects` commit execution | Preserve grid/lightmap behavior while moving renderable grid commands toward app/renderer/document boundaries | `pp_app_core_grid_ui_tests`; `pano_cli plan-grid-operation --kind render --float32 --texture-resolution 1024 --samples 32`; `ctest --preset desktop-fast --build-config Debug` | Grid heightmap/lightmap execution is owned by app/renderer/document services with `NodePanelGrid` acting only as UI adapter |
| DEBT-0025 | Open | Modernization | Quick brush/color slot and mini-state planning and execution dispatch now consume pure `pp_app_core` through `NodePanelQuick`, `pano_cli plan-quick-operation`, and the `QuickUiServices` boundary; live execution is centralized in `src/legacy_quick_ui_services.*`, but the bridge still mutates legacy quick UI widgets, `Brush` previews, color picker popup state, and preset popup state | Preserve quick-panel behavior while quick brush/color commands move toward a brush/app command boundary with safer automation coverage | `pp_app_core_quick_ui_tests`; `pano_cli plan-quick-operation --kind brush --current-index 0 --slot-index 2`; `pano_cli plan-quick-operation --kind restore --brush-index 2 --color-index 1 --fire-event`; `ctest --preset desktop-fast --build-config Debug` | Quick-panel selection, popup, restore, reset, brush preview, and color execution are owned by injected app/brush/UI services with no legacy quick-panel adapter |
| DEBT-0026 | Open | Modernization | Toolbar history command planning and canvas hotkey history dispatch now consume pure `pp_app_core` through `App::init_toolbar_main`, `NodeCanvas`, `pano_cli plan-history-operation`, and the `HistoryUiServices` boundary, and both live callers share `src/legacy_history_services.*` for saturated legacy history metrics and execution, but the shared live bridge still mutates legacy `ActionManager` stacks directly | Preserve undo/redo/clear behavior while moving action history toward document/app command services | `pp_app_core_history_ui_tests`; `pano_cli plan-history-operation --kind undo --undo-count 2`; `pano_cli plan-history-operation --kind clear --undo-count 2 --redo-count 1 --memory-bytes 4096`; `ctest --preset desktop-fast --build-config Debug` | Undo/redo/clear execution is owned by injected document/app history services with no legacy `ActionManager` adapter |
| DEBT-0027 | Open | Modernization | Canvas draw-tool toolbar command, canvas input mode switching, active-state planning/execution dispatch, and canvas keyboard/touch command planning now consume pure `pp_app_core` through `App::init_toolbar_draw`, `App::update`, `NodeCanvas`, `pano_cli plan-canvas-tool`, `pano_cli plan-canvas-tool-state`, `pano_cli plan-canvas-hotkey`, `CanvasToolServices`, and `CanvasHotkeyServices`, and live toolbar/input/hotkey execution is centralized in `src/legacy_canvas_tool_services.*`, but the bridge still mutates or reads legacy `Canvas` mode state, pen picking state, touch-lock state, transform copy/cut action objects, `ActionManager`, legacy save UI, legacy stroke size controls, and cursor/UI singletons | Preserve current toolbar, stylus eraser, keyboard, and touch command behavior while canvas input/tools move toward an app/document command boundary | `pp_app_core_canvas_tool_ui_tests`; `pp_app_core_canvas_hotkey_tests`; `pano_cli plan-canvas-tool --kind copy`; `pano_cli plan-canvas-tool-state --mode draw --picking --touch-lock`; `pano_cli plan-canvas-hotkey --event key-up --key z --ctrl --undo-count 2`; `pano_cli plan-canvas-hotkey --event key-up --key s --ctrl --shift`; `ctest --preset desktop-fast --build-config Debug` | Canvas tool selection, toolbar state refresh, picking, touch lock, stylus eraser/key mode switching, hotkey/touch command dispatch, save hotkeys, history hotkeys, brush-size hotkeys, and transform action execution are owned by injected app/document/canvas services with no legacy toolbar/canvas adapter |
| DEBT-0028 | Open | Modernization | Canvas clear command planning and execution dispatch now consume pure `pp_app_core` through `App::init_toolbar_main`, Layer menu clear, `pano_cli plan-canvas-clear`, and the `DocumentCanvasClearServices` boundary, and toolbar/Layer-menu clear share `src/legacy_document_canvas_services.*`, but the shared live bridge still calls legacy `Canvas::clear`, which records `ActionLayerClear`, clears the current layer/frame, and marks legacy `Canvas::I` unsaved | Preserve clear-current-layer behavior while canvas/document commands move toward document/app command services | `pp_app_core_document_canvas_tests`; `pano_cli plan-canvas-clear --r 0 --g 0.1 --b 0.2 --a 0.3`; `pano_cli plan-canvas-clear --no-canvas`; `pano_cli plan-layer-menu --command clear --current-index 1 --current-name Paint`; `ctest --preset desktop-fast --build-config Debug` | Canvas clear execution, undo recording, dirty-state updates, and clear color handling are owned by injected document/app services with no legacy canvas-clear adapter |
| DEBT-0029 | Open | Modernization | Image import route planning and execution dispatch now consume pure `pp_app_core` through the File menu, `pano_cli plan-image-import`, and the `DocumentImageImportServices` boundary, and live File-menu import execution is centralized in `src/legacy_app_shell_services.*`, but the bridge still loads images with legacy `Image`, calls legacy `Canvas::import_equirectangular`, or configures legacy import transform mode directly | Preserve current File > Import behavior while image import moves toward document/app/asset command services | `pp_app_core_document_import_tests`; `pano_cli plan-image-import --width 4096 --height 2048`; `pano_cli plan-image-import --width 1024 --height 1024`; `ctest --preset desktop-fast --build-config Debug` | Image loading, equirectangular import, transform-placement import, and failure reporting are owned by injected document/app/asset services with File-menu callbacks acting only as adapters and no legacy image-import adapter |
| DEBT-0030 | Open | Modernization | File export menu action planning and execution dispatch now consume pure `pp_app_core` through the File menu, `pano_cli plan-export-menu`, and the `DocumentExportMenuServices` boundary, and live execution is centralized in `src/legacy_app_shell_services.*`, but the bridge still opens legacy export dialogs and then reaches legacy canvas/render/video export code | Preserve current export menu behavior while export command execution moves toward document/app/renderer/video services | `pp_app_core_document_export_tests`; `pano_cli plan-export-menu --kind png`; `pano_cli plan-export-menu --kind animation-mp4 --demo`; `pano_cli plan-export-menu --kind layers --no-canvas`; `ctest --preset desktop-fast --build-config Debug` | Export menu routing, license gating, target creation, image/layer/cube/depth/animation/timelapse execution, and error reporting are owned by injected document/app/renderer/video services with File-menu callbacks acting only as UI adapters and no legacy export adapter |
| DEBT-0031 | Open | Modernization | Top-level File menu command planning and execution dispatch now consume pure `pp_app_core` through `App::init_menu_file`, `pano_cli plan-file-menu`, and the `FileMenuServices` boundary, and live execution is centralized in `src/legacy_app_shell_services.*`, but the bridge still invokes legacy dialogs, platform pickers, cloud code, share code, and canvas import/export paths directly | Preserve File menu behavior while app workflows move toward app/document/platform command services | `pp_app_core_file_menu_tests`; `pano_cli plan-file-menu --command save-as`; `pano_cli plan-file-menu --command import`; `pano_cli plan-file-menu --command cloud-upload`; `ctest --preset desktop-fast --build-config Debug` | File menu routing, picker dispatch, save/share/cloud/resize/export execution, and image/project import execution are owned by injected app/document/platform services with `App::init_menu_file` acting only as a UI adapter and no legacy File menu adapter |
| DEBT-0032 | Open | Modernization | Layer menu command planning and execution dispatch now consume pure `pp_app_core` through `App::init_menu_layer`, `pano_cli plan-layer-menu`, and the `DocumentLayerMenuServices` boundary; Layer menu clear reuses the `DocumentCanvasClearServices` executor; and Layer menu rename/clear/merge now share `src/legacy_document_layer_services.*`, but the bridge still calls the legacy rename dialog path, `NodePanelLayer::merge`, and reads `Canvas::I` animation/layer state directly | Preserve existing Layer menu behavior while layer commands move toward document/app services | `pp_app_core_document_layer_tests`; `pano_cli plan-layer-menu --command clear --current-index 1 --current-name Paint`; `pano_cli plan-layer-menu --command merge --current-index 2 --lower-name Paint`; `pano_cli plan-layer-merge --layer-count 3 --from-index 2 --to-index 1`; `pano_cli plan-layer-merge --layer-count 3 --from-index 2 --to-index 1 --animation-duration 3`; `pano_cli plan-layer-menu --command rename --no-current-layer`; `ctest --preset desktop-fast --build-config Debug` | Layer rename, merge-down execution, animation gating, and selected-layer state are owned by injected document/app services with Layer-menu callbacks acting only as UI adapters and no legacy Layer menu adapter |
| DEBT-0033 | Open | Modernization | Tools menu planning and direct command execution dispatch now consume pure `pp_app_core` through `App::init_menu_tools`, `pano_cli plan-tools-menu`, `pano_cli plan-tools-panel`, and the `ToolsMenuServices` boundary, and direct command execution is centralized in `src/legacy_app_shell_services.*`, but live adapters still construct legacy `NodePanelFloating` panels, mutate legacy panel nodes, clear `CanvasModeGrid`, reset `NodeCanvas` camera state, open legacy shortcuts UI, and call the iOS SonarPen bridge directly | Preserve current Tools menu behavior while UI shell actions move toward app/UI/platform services | `pp_app_core_tools_menu_tests`; `pano_cli plan-tools-menu --command shortcuts`; `pano_cli plan-tools-panel --panel layers`; `pano_cli plan-tools-panel --panel animation --already-visible`; `ctest --preset desktop-fast --build-config Debug` | Tools panel creation, submenu routing, grid clear, camera reset, shortcuts dialog, and SonarPen dispatch are owned by injected app/UI/platform services with `App::init_menu_tools` acting only as a UI adapter and no legacy Tools adapter |
| DEBT-0034 | Open | Modernization | About menu command planning and execution dispatch now consume pure `pp_app_core` through `App::init_menu_about`, `pano_cli plan-about-menu`, and the `AboutMenuServices` boundary, and live execution is centralized in `src/legacy_app_shell_services.*`, but the bridge still opens legacy About/manual/what's-new dialogs, invokes the injected crash hook, and runs the legacy Canvas stroke performance test directly | Preserve About menu behavior while dialogs and diagnostics move toward app/UI/platform services | `pp_app_core_about_menu_tests`; `pano_cli plan-about-menu --command news --version-major 2 --version-minor 5 --version-fix 7`; `pano_cli plan-about-menu --command performance --no-canvas`; `ctest --preset desktop-fast --build-config Debug` | About/manual/what's-new dialog dispatch, crash-test dispatch, and performance-test execution are owned by injected app/UI/platform services with `App::init_menu_about` acting only as a UI adapter and no legacy About adapter |
| DEBT-0035 | Open | Modernization | Main toolbar/status command planning and execution dispatch now consume pure `pp_app_core` through `App::init_toolbar_main`, `pano_cli plan-main-toolbar`, and the `MainToolbarServices` boundary, history/canvas commands now hand off through `HistoryUiServices` and `DocumentCanvasClearServices`, and live execution is centralized in `src/legacy_app_shell_services.*`, but the bridge still opens legacy open/save/settings/message-box dialogs and delegates to legacy history/canvas adapters | Preserve reachable toolbar/status behavior while app shell commands move toward app/document/UI services | `pp_app_core_main_toolbar_tests`; `pano_cli plan-main-toolbar --command undo --undo-count 2`; `pano_cli plan-main-toolbar --command clear-canvas --no-canvas`; `ctest --preset desktop-fast --build-config Debug` | Open/save/settings/message-box routing, undo/redo/clear-history execution, and canvas-clear execution are owned by injected app/document/UI services with `App::init_toolbar_main` acting only as a UI adapter and no legacy toolbar adapter |
| 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.*`, and the app-owned `upload`/`download`/license curl helpers now ask `PlatformServices` for the Android TLS-verification bypass policy, but the bridge still uses legacy save-before-upload, app-owned curl helpers instead of an injected network service, 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`; `pp_platform_api_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, TLS policy, 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 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 |
| DEBT-0043 | Open | Modernization | Equirectangular, layer, animation-frame, depth, and cube-face export planning/execution dispatch now consumes pure `pp_app_core` through `App::dialog_export`, `App::dialog_export_layers`, `App::dialog_export_anim_frames`, `App::dialog_export_depth`, `App::dialog_export_cube_faces`, `pano_cli plan-export-*`, `DocumentExportServices`, and `src/legacy_document_export_services.*`; layer/frame dialogs also consume `plan_document_export_collection_target` plus `PlatformServices::uses_work_directory_document_export_collections()` instead of spelling local iOS branches, but the bridge still calls legacy `Canvas` export methods, owns platform-specific export success messages, creates export directories, handles picker-selected stems, and performs Web prepared-file handoff directly | Preserve current image/collection/depth/cube export behavior while export execution moves toward document/renderer/platform/storage services | `pp_app_core_document_export_tests`; `pp_platform_api_tests`; `pano_cli plan-export-start --requires-license --demo`; `pano_cli plan-export-menu --kind layers`; `pano_cli plan-export-target --kind collection --work-dir D:/Paint --doc-name demo --suffix _layers`; `pano_cli simulate-document-export`; `ctest --preset desktop-fast --build-config Debug` | File, collection, stem, depth, and cube export execution, export-directory creation, platform success reporting, Web file handoff, picker-selected stem handling, and legacy canvas export calls are owned by injected document/renderer/platform/storage services with export dialogs acting only as UI adapters |
| DEBT-0044 | Open | Modernization | Timelapse and animation MP4 export execution dispatch now consumes pure `pp_app_core` through `App::dialog_timelapse_export`, `App::dialog_export_mp4`, `pano_cli plan-export-menu`, `pano_cli plan-export-target --kind name`, `DocumentVideoExportServices`, and `src/legacy_document_export_services.*`, but the bridge still launches legacy desktop timelapse worker threads, calls `App::rec_export`, calls `Canvas::export_anim_mp4`, owns mobile/Web save callbacks, and emits success messages directly | Preserve current MP4/timelapse export behavior while video export moves toward app/document/renderer/video/platform/storage services | `pp_app_core_document_export_tests`; `pano_cli plan-export-menu --kind animation-mp4`; `pano_cli plan-export-menu --kind timelapse`; `pano_cli plan-export-target --kind name --doc-name demo --suffix -animation`; `pano_cli plan-export-target --kind name --doc-name demo --suffix -timelapse`; `ctest --preset desktop-fast --build-config Debug` | Timelapse and animation MP4 execution, desktop worker threading, frame readback/video encoding handoff, mobile/Web save callbacks, and success reporting are owned by injected app/document/renderer/video/platform/storage services with export dialogs acting only as UI adapters |
| 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.*`; PPBR header/path planning now consumes `pp_assets::brush_package`, 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_assets_brush_package_tests`; `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 clouds`; `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.*`; imported brush tip/pattern target paths now consume `pp_assets::brush_package`, 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_assets_brush_package_tests`; `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 |
| DEBT-0049 | Open | Modernization | `pp_assets::validate_ppbr_header` intentionally preserves the legacy PPBR version check from `NodePanelBrushPreset::import_ppbr`, which accepts files when either major is `0` or minor is `1` instead of requiring exactly version `0.1` | Avoid rejecting existing brush packages before compatibility fixtures prove the stricter rule is safe | `pp_assets_brush_package_tests`; `pano_cli plan-brush-package-export --path D:/Paint/clouds.ppbr`; `ctest --preset desktop-fast --build-config Debug`; `cmake --build --preset windows-msvc-default --config Debug --target PanoPainter` | Add PPBR compatibility fixtures for accepted/rejected historical package versions, then require canonical `0.1` or an explicit supported-version matrix and update live import accordingly |
| DEBT-0050 | Open | Modernization | iOS exported-image photo-library publishing and WebGL persistent-storage flushing now dispatch through `PlatformServices`, but non-Windows execution still lives in `src/platform_legacy/legacy_platform_services.*` and forwards to retained `save_image_library`/`webgl_sync` bridges | Preserve current iOS/Web export and save behavior while the Apple/Web platform shells are extracted incrementally | `pp_platform_api_tests`; `ctest --preset desktop-fast --build-config Debug`; platform package smoke once Apple/Web root builds exist | Exported-image publishing and persistent-storage flushing are owned by injected Apple/Web `pp_platform_*` services with no legacy adapter branch |
| DEBT-0051 | Open | Modernization | Document browser search roots now dispatch through `PlatformServices`, but iOS `Inbox` inclusion still lives in `src/platform_legacy/legacy_platform_services.*` | Preserve current iOS document import/browse behavior while Apple platform shells are extracted incrementally | `pp_platform_api_tests`; `ctest --preset desktop-fast --build-config Debug`; Apple package smoke once root Apple builds exist | Document browse roots are owned by injected Apple and desktop `pp_platform_*` services with no legacy adapter branch |
| DEBT-0052 | Open | Modernization | Native UI/window state saving now dispatches through `PlatformServices`, but macOS execution still lives in `src/platform_legacy/legacy_platform_services.*` and forwards to the retained Objective-C app bridge | Preserve current Windows/macOS UI persistence while platform shells are extracted incrementally | `pp_platform_api_tests`; `ctest --preset desktop-fast --build-config Debug`; Windows app build; Apple package smoke once root Apple builds exist | UI/window state persistence is owned by injected platform services with no legacy adapter branch |
| DEBT-0053 | Open | Modernization | Prepared-file writable target selection and prepared-file export-dialog policy now dispatch through `PlatformServices`, but iOS/Web target selection still lives in `src/platform_legacy/legacy_platform_services.*` | Preserve mobile/Web export handoff behavior while platform shells are extracted incrementally | `pp_platform_api_tests`; `ctest --preset desktop-fast --build-config Debug`; Windows app build; Apple/Web package smoke once root package builds exist | Prepared-file target selection, export-dialog policy, and save/download handoff are owned by injected platform services with no legacy adapter branch |
## Closed Debt
| ID | Status | Owner | Item | Reason | Validation | Removal Condition |
| --- | --- | --- | --- | --- | --- | --- |
| DEBT-0006 | Closed | Modernization | `pano_cli create-document` validates and emits JSON command contracts but does not yet invoke the legacy document/app model | The document model had not been extracted from `Canvas`/`App` yet | `ctest --preset desktop-fast --build-config Debug`; `pano_cli_create_document_smoke` | Closed on 2026-05-31: command now constructs a real `pp_document::CanvasDocument` |
| DEBT-0018 | Closed | Modernization | `pp_renderer_gl` owned a tested `OpenGlInitialState` plan for PanoPainter startup depth/blend policy, but `App::init` still executed the plan through direct OpenGL calls | Preserve behavior while moving renderer policy into the backend boundary before a live `IRenderDevice`/command context owns startup execution | `pp_renderer_gl_capabilities_tests`; `ctest --preset desktop-fast --build-config Debug`; `powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug` | Closed on 2026-06-03: `pp_renderer_gl::apply_panopainter_initial_state` now applies the startup state through a tested backend dispatch contract consumed by `App::init` |