packaging: Use UnityObjectId for graph asset identity.

Replace GetInstanceID() with UnityObjectId.Get() when keying graph
assets, so identifiers stay stable across reloads.

Bump Unity to 6000.5.0f1 and com.unity.visualscripting to 1.9.11.

Author: freezy

Runtime/Packaging/VisualScriptingGraphPackager.cs

@@ -190,7 +190,7 @@ private static VisualScriptingGraphData.GraphAsset PackGraph(ScriptableObject as
 		{
 			var serialized = asset.Serialize(true);
 			return new VisualScriptingGraphData.GraphAsset {
-				Id = graphIds[asset.GetInstanceID()],
+				Id = graphIds[VisualPinball.Unity.UnityObjectId.Get(asset)],
 				TypeName = asset.GetType().FullName,
 				Name = asset.name,
 				Json = serialized.json,
@@ -216,7 +216,7 @@ private static List<string> MapObjectReferences(UnityObject[] objectReferences,
 				}
 
 				if (obj is IMacro && obj is ScriptableObject macro) {
-					var instanceId = macro.GetInstanceID();
+					var instanceId = VisualPinball.Unity.UnityObjectId.Get(macro);
 					if (!graphIds.TryGetValue(instanceId, out var id)) {
 						id = "g" + graphIds.Count;
 						graphIds[instanceId] = id;

package.json

@@ -9,10 +9,10 @@
     "Script",
     "Visual"
   ],
-  "unity": "6000.0",
-  "unityRelease": "37f1",
+  "unity": "6000.5",
+  "unityRelease": "0f1",
   "dependencies": {
-    "com.unity.visualscripting": "1.7.7",
+    "com.unity.visualscripting": "1.9.11",
     "org.visualpinball.engine.unity": "0.0.1-preview.90"
   },
   "author": "freezy <freezy@vpdb.io>",