Function sendEvent

api/src/services/generateReport.ts:550–554

(eventType: string, data: any)

    start(controller) {
      // Helper function to send SSE events
      const sendEvent = (eventType: string, data: any) => {
        controller.enqueue(
          `event: ${eventType}\ndata: ${JSON.stringify(data)}\n\n`
        );
      };

      // Self-invoking async function to handle the report generation process
      (async () => {