- Add level-based topological sort (groupNodesByLevel) to identify
nodes that can execute concurrently
- Change state from currentNodeId to currentNodeIds[] for tracking
multiple executing nodes
- Execute nodes in batches using Promise.allSettled with configurable
concurrency limit (default 3, adjustable 1-10)
- Integrate AbortController for fail-fast cancellation on errors
- Pass abort signals to API fetch calls for proper request cancellation
- Update UI: multiple nodes show execution border, FloatingActionBar
shows "N nodes" during parallel execution
- Add concurrency slider in Project Settings > Node Defaults tab
- Store concurrency preference in localStorage
Workflows with independent generate nodes (e.g., 3 parallel image
generations) now complete in ~20-25s instead of ~60-90s sequential.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
## Template Explorer Enhancements
- Add rich metadata and thumbnails for community workflows
- Create communityWorkflows.ts config for workflow metadata
- Reuse TemplateCard for community workflows with tag filtering
- Search now includes workflow descriptions
## Comment Navigation System
- Add comment navigation icon in header with unviewed count badge
- Navigate between nodes with comments using prev/next controls
- Tooltips show comment preview on hover
## Output Node Improvements
- Add custom filename and createDirectory options for output saves
- Remove default React Flow styling from output nodes
- Fix video output node connections
- Preserve node height on resize
## Image Handling Fixes
- Resolve image history race condition and duplicate images on save
- Preserve image history IDs when saving to new directory
- Verify outputImageRef matches selected history index on save
- Persist useExternalImageStorage setting in workflow config
- Paste images directly into selected imageInput nodes
## Model & Generation Fixes
- Use selectedModel.modelId for Gemini generation
- Return 200 with notFound flag instead of 404 for missing files
## Other
- Add git-lfs tracking for large workflow files
- Remove deprecated example workflows
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add 31 tests for WorkflowCanvas covering:
- Basic rendering (ReactFlow, Background, Controls, MiniMap)
- Welcome modal visibility based on canvas state
- Node and edge type registration
- Drag and drop for nodes, images, and workflows
- Keyboard shortcuts (Ctrl+Enter, Ctrl+C, Shift+key node creation)
- Canvas configuration (zoom, delete keys, multi-selection)
- Group handling support
- Add ResizeObserver and DOMMatrixReadOnly mocks to test setup for React Flow
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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