core-developmentlisted

# Core Package Development The core package (`packages/core/`) is dependency-free and handles all DSL processing. ## Data Flow ``` DSL (YAML input) → validate() → normalize() → IR → diff() → Patch ``` ## Key Files | File | Purpose | Exports | |------|---------|---------| | `types.ts` | Type definitions | DSL*, IR*, Patch, WebSocket protocol | | `validate.ts` | YAML validation | `validate(dsl): ValidationResult` | | `normalize.ts` | DSL → IR conversion | `normalize(dsl): IRDocument` | | `diff.ts` | IR diff calculation | `diff(prev, next): Patch` | ## Type Hierarchy ``` DSL Types (user input) IR Types (normalized) ───────────────────── ──────────────────── DSLDocument IRDocument ├─ version: number ├─ version: number ├─ docId: string ├─ docId: string ├─ title?: string ├─ title: string ├─ nodes: DSLNode[] ├─ nodes: Record<string, IRNode> └─ edges?: DSLEdge[] └─ edges: Record<string, IREdge> DSLNode IRNode ├─ id: string ├─ id: string ├─ provider: string ├─ provider: string ├─ kind: string ├─ kind: string ├─ label?: string ├─ label: string (default: id) ├─ parent?: string ├─ parent: string | null └─ layout: DSLLayout └─ layout: { x, y, w, h } DSLEdge IREdge ├─ id: string ├─ id: string ├─ from: string ├─ from: string ├─ to: string ├─ to: