Remove explicit cancel callback and centralize dismissal: clicking the canvas now dismisses active UI extraction (handled in ImageCanvasEditorView) instead of relying on an onCancel prop. Simplify ImageCanvasStageView and ImageCanvasUiAssetExtractionOverlayView APIs by removing onCancel and related UI. Improve preview bounds and rendering: add normalization to mark bounds, clamp to source dimensions, and render crop previews using an absolutely-positioned <img> for accurate, coordinate-based previews. Update styles for toolbar active states and preview image layout, and reduce SVG stroke width. Update tests and docs to reflect new behaviors and UI wording (tool highlight, accurate crop preview, and dismissal behavior).
Require an explicit red-box selection before extracting UI-design assets: add rectangular/ellipse/brush selection UI, render red-outline marks into a marked Data URL on the client, and update the extraction prompt to "仅提取被红色框框选的素材并整理成spritesheet". Add frontend overlay/raster models and tests to support the selection flow and adjust numerous image-editor tests and views to wire up the selection lifecycle. On the dev ops side, enhance scripts/dev to detect a local %LOCALAPPDATA%/Genarrative/ffmpeg/bin installation on Windows, prepend it to PATH and inject CHARACTER_ANIMATION_FFMPEG_PATH/FFPROBE_PATH (with tests), and export the helper. Server config now prefers GENARRATIVE_*-prefixed FFmpeg env vars and includes a Rust test to validate reading the prefixed variables. Update docs to describe the new UI extraction behavior and local FFmpeg handling.
Introduce centralized model pricing for editor generations: add EditorGenerationPricing types and admin API client methods (GET/POST), backend default config and runtime override support, and server route/handler changes to expose admin editor-generation-pricing. Add an AdminEditorGenerationPricingPage component, styles, route entry, icon, and tests, plus a test for admin routes. Update docs and decision log to describe the pricing contract and management workflow. This enables managing per-model pricing (perGeneration / perSecond, flat or tiered) from the admin panel and exposes runtime pricing to the main site.
Introduce a new UI design asset extraction flow: add POST /api/editor/ui-designs/assets/extractions handler that always uses gpt-image-2 with the fixed prompt "提取画面中的所有独立并整理成spritesheet"; parse Data URL references, call OpenAI image edits, return a spritesheet and sliced icon assets. Increase request body limit for image Data URLs and wire the route with bearer auth. Add platform-image slicing: slice_generated_icon_spritesheet_all_by_connected_components (with auto-naming "素材 1..N", foreground estimation and heuristics) and export it. Add Rust tests for the handler, prompt constant, and slicing behavior. Update frontend client and integration tests to call the new extractEditorUiDesignAssets API and verify spritesheet + icon layers are added to the canvas and persisted. Update multiple docs to describe the extraction UI, toolbar placement, and related audio/playback pitfalls. Minor related updates: toolbar button ordering and audio duration / signed read-url notes.