refactor: remove concurrency limit from Telegram upload queue and enhance media group handling

test/telegramQueue.test.ts

@@ -2,10 +2,9 @@ import { describe, expect, it } from 'bun:test';
 import { enqueueUpload } from '../src/utils/telegramQueue';
 
 describe('Telegram Queue', () => {
-  it('should process tasks in order and limit concurrency', async () => {
+  it('should process tasks in parallel without limit', async () => {
     let activeTasks = 0;
     let maxActiveTasks = 0;
-    const executionOrder: number[] = [];
 
     const createTask = (id: number, delayMs: number) => {
       return async () => {
@@ -16,24 +15,22 @@ describe('Telegram Queue', () => {
 
         await new Promise((resolve) => setTimeout(resolve, delayMs));
 
-        executionOrder.push(id);
         activeTasks--;
         return id;
       };
     };
 
-    // Enqueue 4 tasks with delays
     const promises = [
       enqueueUpload(createTask(1, 50)),
-      enqueueUpload(createTask(2, 20)),
-      enqueueUpload(createTask(3, 10)),
-      enqueueUpload(createTask(4, 5)),
+      enqueueUpload(createTask(2, 50)),
+      enqueueUpload(createTask(3, 50)),
+      enqueueUpload(createTask(4, 50)),
     ];
 
     const results = await Promise.all(promises);
 
     expect(results).toEqual([1, 2, 3, 4]);
-    // Concurrency limit is 2, so maximum active tasks at any time should be <= 2
-    expect(maxActiveTasks).toBeLessThanOrEqual(2);
+    // Concurrency limit is removed, so active tasks should be able to reach 4 (fully parallel)
+    expect(maxActiveTasks).toBe(4);
   });
 });