fix: Update throttle for /meta endpoints, will call every 2s for small account, 10s for large accounts (#11190)

This update improves the throttling mechanism for conversation meta
requests to optimize server load and enhance performance. The changes
implement differentiated thresholds based on account size - a 2-second
throttle for small accounts (≤100 conversations) and a 10-second
throttle for large accounts (>100 conversations).

Fixes #11178

app/javascript/dashboard/store/modules/specs/conversationStats/helper.spec.js

@@ -0,0 +1,37 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import ConversationMetaThrottleManager from 'dashboard/helper/ConversationMetaThrottleManager';
+import { shouldThrottle } from '../../conversationStats';
+
+vi.mock('dashboard/helper/ConversationMetaThrottleManager', () => ({
+  default: {
+    shouldThrottle: vi.fn(),
+  },
+}));
+
+describe('shouldThrottle', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('uses normal threshold for accounts with 100 or fewer conversations', () => {
+    shouldThrottle(100);
+    expect(ConversationMetaThrottleManager.shouldThrottle).toHaveBeenCalledWith(
+      2000
+    );
+  });
+
+  it('uses large account threshold for accounts with more than 100 conversations', () => {
+    shouldThrottle(101);
+    expect(ConversationMetaThrottleManager.shouldThrottle).toHaveBeenCalledWith(
+      10000
+    );
+  });
+
+  it('returns the throttle value from ConversationMetaThrottleManager', () => {
+    ConversationMetaThrottleManager.shouldThrottle.mockReturnValue(true);
+    expect(shouldThrottle(50)).toBe(true);
+
+    ConversationMetaThrottleManager.shouldThrottle.mockReturnValue(false);
+    expect(shouldThrottle(150)).toBe(false);
+  });
+});