[refactor] remove node as dependency in 3d node (#6707)

## Summary

This PR refactors the Load3d 3D rendering system to remove its direct
dependency on LGraphNode, making it a more decoupled and reusable
component. The core rendering engine is now framework-agnostic and can
be used in any context, not just within LiteGraph nodes.

## Changes

1. Decoupled Load3d from LGraphNode
  - Before: Load3d directly accessed node.widgets and node.properties
- After: Load3d accepts optional parameters and callbacks, delegating
node integration to the calling code

2. Event-Driven State Management
  - Removed internal storage from Load3d core components
- Camera, controls, and view helper managers now emit cameraChanged
events instead of directly storing state
- External code (e.g., useLoad3d) listens to events and handles
persistence to node.properties

3. Reactive Dimension Updates

- Introduced getDimensions callback to support reactive dimension
updates
- Fixes the issue where dimension changes in vueNodes mode required a
refresh
- The callback is invoked on every render to get fresh width/height
values

4. Improved Configuration System

- Load3DConfiguration now accepts properties: Dictionary<NodeProperty |
undefined> instead of custom storage
  interface
  - Uses official LiteGraph type definitions (Dictionary, NodeProperty)
  - More semantic parameter naming: storage → properties

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6707-refactor-remove-node-as-dependency-in-3d-node-2ab6d73d365081ffac1cdce354781ce8)
by [Unito](https://www.unito.io)

src/extensions/core/load3d/ViewHelperManager.ts

@@ -3,7 +3,7 @@ import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
 import { ViewHelper } from 'three/examples/jsm/helpers/ViewHelper'
 
 import {
-  type NodeStorageInterface,
+  type EventManagerInterface,
   type ViewHelperManagerInterface
 } from './interfaces'
 
@@ -13,7 +13,7 @@ export class ViewHelperManager implements ViewHelperManagerInterface {
 
   private getActiveCamera: () => THREE.Camera
   private getControls: () => OrbitControls
-  private nodeStorage: NodeStorageInterface
+  private eventManager: EventManagerInterface
   // @ts-expect-error unused variable
   private renderer: THREE.WebGLRenderer
 
@@ -21,12 +21,12 @@ export class ViewHelperManager implements ViewHelperManagerInterface {
     renderer: THREE.WebGLRenderer,
     getActiveCamera: () => THREE.Camera,
     getControls: () => OrbitControls,
-    nodeStorage: NodeStorageInterface
+    eventManager: EventManagerInterface
   ) {
     this.renderer = renderer
     this.getActiveCamera = getActiveCamera
     this.getControls = getControls
-    this.nodeStorage = nodeStorage
+    this.eventManager = eventManager
   }
 
   init(): void {}
@@ -87,18 +87,7 @@ export class ViewHelperManager implements ViewHelperManagerInterface {
               : 'orthographic'
         }
 
-        const cameraConfig = this.nodeStorage.loadNodeProperty(
-          'Camera Config',
-          {
-            cameraType: cameraState.cameraType,
-            fov:
-              this.getActiveCamera() instanceof THREE.PerspectiveCamera
-                ? (this.getActiveCamera() as THREE.PerspectiveCamera).fov
-                : 75
-          }
-        )
-        cameraConfig.state = cameraState
-        this.nodeStorage.storeNodeProperty('Camera Config', cameraConfig)
+        this.eventManager.emitEvent('cameraChanged', cameraState)
       }
     }
   }