feat: 重新支持apikey费用排序功能

src/app.js

@@ -85,6 +85,11 @@ class Application {
       const claudeAccountService = require('./services/claudeAccountService')
       await claudeAccountService.initializeSessionWindows()
 
+      // 📊 初始化费用排序索引服务
+      logger.info('📊 Initializing cost rank service...')
+      const costRankService = require('./services/costRankService')
+      await costRankService.initialize()
+
       // 超早期拦截 /admin-next/ 请求 - 在所有中间件之前
       this.app.use((req, res, next) => {
         if (req.path === '/admin-next/' && req.method === 'GET') {
@@ -656,6 +661,15 @@ class Application {
             logger.error('❌ Error stopping rate limit cleanup service:', error)
           }
 
+          // 停止费用排序索引服务
+          try {
+            const costRankService = require('./services/costRankService')
+            costRankService.shutdown()
+            logger.info('📊 Cost rank service stopped')
+          } catch (error) {
+            logger.error('❌ Error stopping cost rank service:', error)
+          }
+
           // 🔢 清理所有并发计数（Phase 1 修复：防止重启泄漏）
           try {
             logger.info('🔢 Cleaning up all concurrency counters...')