unique seed for model generation

Assets/_PROJECT/Scripts/ModeGeneration/TrellisClient.cs

@@ -2,7 +2,6 @@ using Newtonsoft.Json.Linq;
 using System;
 using System.Collections.Generic;
 using System.Net.Http;
-using System.Threading;
 using System.Threading.Tasks;
 using UnityEngine;
 
@@ -37,9 +36,10 @@ public class TrellisClient : MonoBehaviour
 
     public async Task<byte[]> GenerateModel(
             string imageBase64,
-            int seed = 42,
             int pollIntervalMs = 1000)
     {
+        int seed = UnityEngine.Random.Range(0, 999999);
+
         // --- Set generation parameters (form-encoded, like Python requests.post(data=params)) ---
         var form = new Dictionary<string, string>
         {