Fix: Always update print area coordinates when editing product

- Print area was only updated if a new image was uploaded
- Now print area is updated even when keeping existing image
- Fixes design area positioning mismatch on made-to-order page
- Applies to both front and back print areas

.claude/settings.local.json

@@ -105,7 +105,8 @@
       "Bash(git commit -m 'Fix: Handle image removal in product editor *)",
       "Bash(git commit -m 'Refactor: Move image display into PhotoPrintAreaField component *)",
       "Bash(git commit -m 'Optimize: Skip color photo processing when not uploading new photos *)",
-      "Bash(git commit -m 'Optimize: Fetch only necessary fields from database *)"
+      "Bash(git commit -m 'Optimize: Fetch only necessary fields from database *)",
+      "Bash(git commit -m 'Fix: Always update print area coordinates when editing product *)"
     ]
   }
 }