[feat] Add widget renderer composable

- Map LiteGraph widget types to Vue components
- Support text, combo, number, boolean widget types
- Check if widgets should render as Vue components
- Proper TypeScript interfaces instead of any

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/composables/graph/useWidgetRenderer.ts

@@ -0,0 +1,92 @@
+/**
+ * Widget renderer composable for Vue node system
+ * Maps LiteGraph widget types to Vue components
+ */
+import {
+  WidgetType,
+  widgetTypeToComponent
+} from '@/components/graph/vueWidgets/widgetRegistry'
+
+export const useWidgetRenderer = () => {
+  /**
+   * Map LiteGraph widget types to Vue widget component names
+   */
+  const getWidgetComponent = (widgetType: string): string => {
+    // Map common LiteGraph widget types to our registry enum keys
+    const typeToEnum: Record<string, string> = {
+      // Number inputs
+      number: WidgetType.NUMBER,
+      slider: WidgetType.SLIDER,
+      INT: WidgetType.INT,
+      FLOAT: WidgetType.FLOAT,
+
+      // Text inputs
+      text: WidgetType.STRING,
+      string: WidgetType.STRING,
+      STRING: WidgetType.STRING,
+
+      // Selection
+      combo: WidgetType.COMBO,
+      COMBO: WidgetType.COMBO,
+
+      // Boolean
+      toggle: WidgetType.TOGGLESWITCH,
+      boolean: WidgetType.BOOLEAN,
+      BOOLEAN: WidgetType.BOOLEAN,
+
+      // Multiline text
+      multiline: WidgetType.TEXTAREA,
+      textarea: WidgetType.TEXTAREA,
+
+      // Advanced widgets
+      color: WidgetType.COLOR,
+      COLOR: WidgetType.COLOR,
+      image: WidgetType.IMAGE,
+      IMAGE: WidgetType.IMAGE,
+      file: WidgetType.FILEUPLOAD,
+      FILEUPLOAD: WidgetType.FILEUPLOAD
+    }
+
+    // Get mapped enum key
+    const enumKey = typeToEnum[widgetType]
+
+    // Check if we have a component for this type
+    if (enumKey && widgetTypeToComponent[enumKey]) {
+      return enumKey
+    }
+
+    // Log unmapped widget types for debugging
+    if (process.env.NODE_ENV === 'development') {
+      console.warn(
+        `[useWidgetRenderer] Unknown widget type: ${widgetType}, falling back to WidgetInputText`
+      )
+    }
+
+    return WidgetType.STRING // Return enum key for WidgetInputText
+  }
+
+  /**
+   * Check if a widget should be rendered as Vue component
+   */
+  const shouldRenderAsVue = (widget: {
+    type?: string
+    options?: Record<string, unknown>
+  }): boolean => {
+    // Skip widgets that are marked as canvas-only
+    if (widget.options?.canvasOnly) return false
+
+    // Skip widgets without a type
+    if (!widget.type) return false
+
+    // Get the component type for this widget
+    const enumKey = getWidgetComponent(widget.type)
+
+    // If we have a component in our registry, render it as Vue
+    return widgetTypeToComponent[enumKey] !== undefined
+  }
+
+  return {
+    getWidgetComponent,
+    shouldRenderAsVue
+  }
+}