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-# Graph Composables - Reactive Layout System
-
-This directory contains composables for the reactive layout system, enabling Vue nodes to handle their own interactions while maintaining synchronization with LiteGraph.
-
-## Composable Architecture
-
-```mermaid
-graph TB
-    subgraph "Composables"
-        URL[useReactiveLayout<br/>- Singleton Management<br/>- Service Access]
-        UVNI[useVueNodeInteraction<br/>- Node Dragging<br/>- CSS Transforms]
-        ULGS[useLiteGraphSync<br/>- Bidirectional Sync<br/>- Position Updates]
-    end
-
-    subgraph "Services"
-        LT[ReactiveLayoutTree]
-        HT[ReactiveHitTester]
-    end
-
-    subgraph "Components"
-        GC[GraphCanvas]
-        VN[Vue Nodes]
-        TP[TransformPane]
-    end
-
-    URL --> LT
-    URL --> HT
-    UVNI --> URL
-    ULGS --> URL
-    
-    GC --> ULGS
-    VN --> UVNI
-    TP --> URL
-</mermaid>
-
-## Interaction Flow
-
-```mermaid
-sequenceDiagram
-    participant User
-    participant VueNode
-    participant UVNI as useVueNodeInteraction
-    participant LT as LayoutTree
-    participant LG as LiteGraph
-
-    User->>VueNode: pointerdown
-    VueNode->>UVNI: startDrag(event)
-    UVNI->>UVNI: Set drag state
-    UVNI->>UVNI: Capture pointer
-    
-    User->>VueNode: pointermove
-    VueNode->>UVNI: handleDrag(event)
-    UVNI->>UVNI: Calculate delta
-    UVNI->>VueNode: Update CSS transform
-    Note over VueNode: Visual feedback only
-    
-    User->>VueNode: pointerup
-    VueNode->>UVNI: endDrag(event)
-    UVNI->>LT: updateNodePosition(finalPos)
-    LT->>LG: Trigger reactive sync
-    LG->>LG: Update canvas
-```
-
-## useReactiveLayout
-
-Singleton management for the reactive layout system.
-
-```mermaid
-classDiagram
-    class useReactiveLayout {
-        +layoutTree: ComputedRef~ReactiveLayoutTree~
-        +hitTester: ComputedRef~ReactiveHitTester~
-        +nodePositions: ComputedRef~Map~
-        +nodeBounds: ComputedRef~Map~
-        +selectedNodes: ComputedRef~Set~
-        -initialize(): void
-    }
-
-    class Singleton {
-        <<pattern>>
-        Shared across all components
-    }
-
-    useReactiveLayout --> Singleton : implements
-```
-
-## useVueNodeInteraction
-
-Handles individual node interactions with CSS transforms.
-
-```mermaid
-flowchart LR
-    subgraph "Drag State"
-        DS[isDragging<br/>dragDelta<br/>dragStartPos]
-    end
-    
-    subgraph "Event Handlers"
-        SD[startDrag]
-        HD[handleDrag]
-        ED[endDrag]
-    end
-    
-    subgraph "Computed Styles"
-        NS[nodeStyle<br/>- position<br/>- dimensions<br/>- z-index]
-        DGS[dragStyle<br/>- transform<br/>- transition]
-    end
-    
-    SD --> DS
-    HD --> DS
-    ED --> DS
-    
-    DS --> NS
-    DS --> DGS
-```
-
-### Transform Calculation
-
-```mermaid
-graph TB
-    subgraph "Mouse Delta"
-        MD[event.clientX/Y - startMouse]
-    end
-    
-    subgraph "Canvas Transform"
-        CT[screenToCanvas conversion]
-    end
-    
-    subgraph "Drag Delta"
-        DD[Canvas-space delta]
-    end
-    
-    subgraph "CSS Transform"
-        CSS[translate(deltaX, deltaY)]
-    end
-    
-    MD --> CT
-    CT --> DD
-    DD --> CSS
-```
-
-## useLiteGraphSync
-
-Bidirectional synchronization between LiteGraph and the reactive layout tree.
-
-```mermaid
-stateDiagram-v2
-    [*] --> Initialize
-    
-    Initialize --> SyncFromLiteGraph
-    SyncFromLiteGraph --> WatchLayoutTree
-    
-    state WatchLayoutTree {
-        [*] --> Listening
-        Listening --> PositionChanged: Layout tree update
-        PositionChanged --> UpdateLiteGraph
-        UpdateLiteGraph --> TriggerRedraw
-        TriggerRedraw --> Listening
-    }
-    
-    state SyncFromLiteGraph {
-        [*] --> ReadNodes
-        ReadNodes --> UpdateLayoutTree
-        UpdateLayoutTree --> [*]
-    }
-```
-
-## Integration Example
-
-```typescript
-// In GraphCanvas.vue
-const { initializeSync } = useLiteGraphSync()
-onMounted(() => {
-  initializeSync() // Start bidirectional sync
-})
-
-// In LGraphNode.vue
-const {
-  isDragging,
-  startDrag,
-  handleDrag,
-  endDrag,
-  dragStyle,
-  updatePosition
-} = useVueNodeInteraction(props.nodeData.id)
-
-// Template
-<div
-  :style="[
-    {
-      transform: `translate(${position.x}px, ${position.y}px)`,
-      // ... other styles
-    },
-    dragStyle // Applied during drag
-  ]"
-  @pointerdown="handlePointerDown"
-  @pointermove="handlePointerMove"
-  @pointerup="handlePointerUp"
->
-```
-
-## Performance Considerations
-
-1. **CSS Transforms During Drag**: No layout recalculation, GPU accelerated
-2. **Batch Position Updates**: Layout tree updates trigger single LiteGraph sync
-3. **Reactive Efficiency**: Vue's computed properties cache results
-4. **Spatial Indexing**: QuadTree integration for fast hit testing
-
-## Future Migration Path
-
-Currently: Vue nodes use CSS transforms, commit to layout tree on drag end
-Future: Each renderer owns complete interaction handling and layout state
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