fix: correct UltimateSDUpscale input indices in workflow

The upscale_model input was at index 5 instead of index 12, causing all
widget parameters to be misaligned. Fixed by:
- Updating link target index from 5 to 12 for upscale_model
- Adding explicit entries for widget parameters in inputs array
- Maintaining correct parameter order per custom node definition

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

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

comfyui/workflows/upscaling/ultimate-sd-upscale-production-v1.json

@@ -178,6 +178,32 @@
           "type": "VAE",
           "link": 5
         },
+        {
+          "name": "upscale_by",
+          "type": "FLOAT"
+        },
+        {
+          "name": "seed",
+          "type": "INT"
+        },
+        {
+          "name": "steps",
+          "type": "INT"
+        },
+        {
+          "name": "cfg",
+          "type": "FLOAT"
+        },
+        {
+          "name": "sampler_name"
+        },
+        {
+          "name": "scheduler"
+        },
+        {
+          "name": "denoise",
+          "type": "FLOAT"
+        },
         {
           "name": "upscale_model",
           "type": "UPSCALE_MODEL",
@@ -250,7 +276,7 @@
     [7, 4, 0, 5, 3, "CONDITIONING"],
     [8, 5, 0, 6, 0, "IMAGE"],
     [9, 5, 0, 7, 0, "IMAGE"],
-    [10, 8, 0, 5, 5, "UPSCALE_MODEL"]
+    [10, 8, 0, 5, 12, "UPSCALE_MODEL"]
   ],
   "groups": [],
   "config": {},