Remove API key prompt from custom.js

assets/custom.js

@@ -1,17 +1,10 @@
 // Auto‑load saved image‑generation API key into the MCP input field.
-// If no key is stored, prompt the user once and persist it in localStorage.
+// If the user has previously stored a key, it will be inserted; otherwise nothing is shown.
 window.addEventListener('load', () => {
   const storageKey = 'image_api_key';
-  let savedKey = localStorage.getItem(storageKey);
-  if (!savedKey) {
-    // Prompt user only once per browser session
-    savedKey = prompt('Enter your Inference Co‑op image‑generation API key (will be saved locally):');
-    if (savedKey) {
-      localStorage.setItem(storageKey, savedKey);
-    }
-  }
+  const savedKey = localStorage.getItem(storageKey);
   if (savedKey) {
     const icInput = document.querySelector('input[name="IC_API_KEY"]');
     if (icInput) icInput.value = savedKey;
   }
-});
+});