fix: address PR review on token handling and retry messaging

Author: gildesmarais

frontend/src/components/AppPanels.tsx

@@ -198,7 +198,7 @@ export function CreateFeedPanel({
             <input
               id="access-token"
               name="access-token"
-              type="text"
+              type="password"
               class="input input--mono input--minimal"
               aria-label="Access token"
               placeholder="Paste access token"

frontend/src/hooks/useAccessToken.ts

@@ -63,10 +63,15 @@ export function useAccessToken() {
 
     try {
       const token = storage.getItem(ACCESS_TOKEN_KEY)?.trim() ?? '';
-      const legacyToken =
-        token || typeof window === 'undefined'
-          ? ''
-          : (window.sessionStorage?.getItem(ACCESS_TOKEN_KEY)?.trim() ?? '');
+      let legacyToken = '';
+      if (!token && typeof window !== 'undefined') {
+        try {
+          legacyToken = window.sessionStorage?.getItem(ACCESS_TOKEN_KEY)?.trim() ?? '';
+        } catch {
+          // Treat restricted sessionStorage access as no legacy token.
+          legacyToken = '';
+        }
+      }
 
       if (!token && legacyToken) {
         storage.setItem(ACCESS_TOKEN_KEY, legacyToken);

frontend/src/hooks/useFeedConversion.ts

@@ -270,7 +270,7 @@ function buildRetryFailureMessage(
     return `Tried ${requestedStrategy} first, then ${fallbackStrategy}. ${secondMessage}`;
   }
 
-  return `Tried ${requestedStrategy} first, then ${fallbackStrategy}. ${secondMessage}`;
+  return `Tried ${requestedStrategy} first, then ${fallbackStrategy}. First attempt failed with: ${firstMessage}. Second attempt failed with: ${secondMessage}`;
 }
 
 function buildConversionError(message: string, metadata: Partial<ConversionError>): ConversionError {