refactor(poll): updates stale comments for OAuth App model

Author: wgordon17

src/app/services/poll.ts

@@ -36,7 +36,7 @@ export interface PollCoordinator {
 // ── Notifications gate ───────────────────────────────────────────────────────
 
 let _notifLastModified: string | null = null;
-let _notifGateDisabled = false; // Disabled after 403 (missing notifications permission)
+let _notifGateDisabled = false; // Disabled after 403 (notifications scope not granted)
 
 function resetPollState(): void {
   _notifLastModified = null;
@@ -54,7 +54,7 @@ onAuthCleared(resetPollState);
  * Returns true if there are new notifications (or first check), false if unchanged.
  * Uses If-Modified-Since for zero-cost 304 checks (doesn't count against rate limit).
  *
- * Auto-disables after a 403 (missing notifications permission) to stop wasting
+ * Auto-disables after a 403 (notifications scope not granted) to stop wasting
  * rate limit tokens on requests that will always fail.
  */
 async function hasNotificationChanges(): Promise<boolean> {
@@ -89,7 +89,7 @@ async function hasNotificationChanges(): Promise<boolean> {
     ) {
       return false; // Nothing changed since last check
     }
-    // 403 = missing notifications permission — disable gate permanently
+    // 403 = notifications scope not granted — disable gate permanently
     // to stop burning rate limit tokens on every poll cycle
     if (
       typeof err === "object" &&