Material list:
- Switch asset list from one-per-row to a wrapping thumbnail grid
(IconMode cards: thumbnail + corner checkbox + elided name, subfolder
moved to tooltip).
Templates:
- Template.to_transform_state now contains-fits the print inside the
target box by the print's native aspect ratio (no stretch); falls back
to the box when print size is unknown.
- Feed print native size into template_panel for aspect-aware fitting.
- Shrink built-in template boxes to realistic print proportions.
UI hierarchy:
- Promote 打开文件夹 buttons to primary (filled accent).
- Add inline 归零 (reset angle) and a 重置位置/尺寸/角度 button to the
transform panel; wire it to re-apply the selected template.
- Hide 保存 for built-in templates instead of leaving it greyed.
Docs: record template box/contain behavior (PRD) and the grid layout,
button hierarchy, and reset/save-visibility rules (UI design).
Tests: add 3 aspect-fit cases for to_transform_state.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Expand MainWindow from placeholder to full structural layout:
- Header bar: app name, version label, settings button
- Flow tab bar (QTabBar): tabs 2/3 disabled, click redirects to status bar message
- Work area (QSplitter): ImageListPanel (left 374px) | ImageCanvas (center, stretch) | right scroll with TemplatePanel/TransformPanel/ExportPanel (318px)
- Queue panel (188px, collapsible ▲/▼ toggle)
- QStatusBar with Windows-style styling
Applies color/font spec from docs/07-ui-design.md §10.
No business logic in main_window.py; panel stubs remain for tasks 8–13.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>