* ADR: Add PrimeVue fork decision record
Adds ADR-0003 documenting the decision to fork PrimeVue as a monorepo workspace package. Key rationale includes transform coordinate system conflicts and virtual canvas scroll interference that require component-level modifications.
* ADR: Reject PrimeVue fork decision
- Change status from Proposed to Rejected
- Document rationale: implementation complexity with dual monorepos,
maintenance burden, alternative solutions available
- Add specific code citations and repository links
- Include alternative approach using shadcn/ui for selective replacement
- Rename 0004-crdt-based-layout-system.md to 0003-crdt-based-layout-system.md
- Update title from "4. Centralized..." to "3. Centralized..."
- Add ADR 0003 entry to docs/adr/README.md index table
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Alexander Brown <drjkl@comfy.org>
Adds ADR-0004 documenting the architectural decision to implement centralized layout management using CRDT backing store with command pattern architecture.
## Key Technical Decisions Documented
- **Centralized State Management**: Move from scattered `node.position` mutations to single authoritative layout store
- **CRDT Foundation**: Yjs-backed store provides conflict resolution and collaboration readiness
- **Command Pattern**: All spatial mutations flow through explicit commands for undo/redo and system coordination
- **Reactive Architecture**: Transition from O(n) diff-based change detection to O(1) signal-based reactivity
## Current Architecture Problems Addressed
- Performance bottlenecks from polling-based change detection in complex workflows
- Position conflicts between LiteGraph canvas and DOMwidgets.ts overlay systems
- Inability to support collaborative editing due to direct mutation patterns
- Renderer lock-in preventing alternative rendering backends
