Round 7 bug fixes (13 fixes)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/realdebrid.ts

@@ -78,6 +78,11 @@ async function sleepWithSignal(ms: number, signal?: AbortSignal): Promise<void>
     await sleep(ms);
     return;
   }
+  // Check before entering the Promise constructor to avoid a race where the timer
+  // resolves before the aborted check runs (especially when ms=0).
+  if (signal.aborted) {
+    throw new Error("aborted");
+  }
   await new Promise<void>((resolve, reject) => {
     let timer: NodeJS.Timeout | null = setTimeout(() => {
       timer = null;
@@ -94,10 +99,6 @@ async function sleepWithSignal(ms: number, signal?: AbortSignal): Promise<void>
       reject(new Error("aborted"));
     };
 
-    if (signal.aborted) {
-      onAbort();
-      return;
-    }
     signal.addEventListener("abort", onAbort, { once: true });
   });
 }