Remove unused POWER_USER_THRESHOLD constant

Co-authored-by: rajbos <6085745+rajbos@users.noreply.github.com>

Author: Copilot

src/lib/utils.ts

@@ -232,8 +232,7 @@ export interface PowerUserSummary {
   powerUserModelSummary: ModelUsageSummary[];
 }
 
-// Define power user threshold - users with more than 10 requests (kept for backward compatibility)
-export const POWER_USER_THRESHOLD = 10;
+
 
 export function getPowerUsers(data: CopilotUsageData[]): PowerUserSummary {
   // First, aggregate total requests per user

src/test/power-users.test.ts

@@ -1,5 +1,5 @@
 import { describe, it, expect } from 'vitest';
-import { getPowerUsers, getPowerUserDailyData, POWER_USER_THRESHOLD, CopilotUsageData } from '../lib/utils';
+import { getPowerUsers, getPowerUserDailyData, CopilotUsageData } from '../lib/utils';
 
 describe('Power Users Functionality', () => {
   const mockData: CopilotUsageData[] = [
@@ -158,8 +158,6 @@ describe('Power Users Functionality', () => {
   });
 
   it('should use top 10% logic for power users', () => {
-    expect(POWER_USER_THRESHOLD).toBe(10); // Still kept for backward compatibility
-    
     // Test with single user - should always have 1 power user
     const singleUserData: CopilotUsageData[] = [
       {