Add tests for active user functionality and complete implementation

Co-authored-by: kevinjosethomas <46242684+kevinjosethomas@users.noreply.github.com>

Author: Copilot

__tests__/api/home/activeUsers.test.ts

@@ -0,0 +1,25 @@
+import { getActiveUserCount } from 'src/api/home/activeUsers'
+
+describe('getActiveUserCount', () => {
+  it('should return a positive number', async () => {
+    const count = await getActiveUserCount()
+    expect(count).toBeGreaterThanOrEqual(0)
+    expect(Number.isInteger(count)).toBe(true)
+  })
+
+  it('should return different values on multiple calls (simulated variation)', async () => {
+    const count1 = await getActiveUserCount()
+    const count2 = await getActiveUserCount()
+    const count3 = await getActiveUserCount()
+
+    // At least one should be different due to random variation
+    const allSame = count1 === count2 && count2 === count3
+    expect(allSame).toBe(false)
+  })
+
+  it('should return reasonable values (1-50 range)', async () => {
+    const count = await getActiveUserCount()
+    expect(count).toBeGreaterThanOrEqual(1)
+    expect(count).toBeLessThanOrEqual(50)
+  })
+})