fix(mobile): prevent crash when restoring a saved playback queue

packages/core/src/player.ts

@@ -188,6 +188,7 @@ export class EventBuffer {
     private readonly sink: EventSink,
     private readonly now: () => number = Date.now,
     private readonly maxRetryMs = 5 * 60_000,
+    private readonly createId: (now: number) => string = uuidv7,
   ) {}
 
   get pending(): readonly PlayEvent[] {
@@ -196,7 +197,7 @@ export class EventBuffer {
 
   push(e: Omit<PlayEvent, 'id' | 'occurred_at'> & Partial<Pick<PlayEvent, 'id' | 'occurred_at'>>) {
     const t = this.now();
-    this.queue.push({ id: e.id ?? uuidv7(t), occurred_at: e.occurred_at ?? new Date(t).toISOString(), ...e } as PlayEvent);
+    this.queue.push({ id: e.id ?? this.createId(t), occurred_at: e.occurred_at ?? new Date(t).toISOString(), ...e } as PlayEvent);
     if (this.queue.length >= 500) void this.flush();
   }