Error: Connection pool exhausted at Pool.acquire (/app/node_modules/pg-pool/index.js:45:15) at Client.connect (/app/node_modules/pg/lib/client.js:89:7) at async DatabaseService.getConnection (/app/src/services/database.js:23:12) at async UserService.getUserById (/app/src/services/user.js:45:8) at async AuthMiddleware.authenticate (/app/src/middleware/auth.js:12:15)

Error: Rate limit exceeded at OpenAI.request (/app/node_modules/openai/index.js:123:45) at async AIService.generateSummary (/app/src/services/ai.js:67:12) at async DocumentProcessor.processDocument (/app/src/processors/document.js:89:15)

Warning: Quota approaching limit at GmailService.checkQuota (/app/src/services/gmail.js:234:12) at async GmailSyncWorker.syncEmails (/app/src/workers/gmail-sync.js:45:8)

Info: Index optimization completed at PineconeService.optimizeIndex (/app/src/services/pinecone.js:156:8) at async IndexMaintenanceTask.run (/app/src/tasks/index-maintenance.js:23:12)

Error: Authentication failed at GoogleDriveService.authenticate (/app/src/services/drive.js:45:12) at async DriveSyncWorker.syncFiles (/app/src/workers/drive-sync.js:23:8) at async OAuthService.refreshToken (/app/src/services/oauth.js:67:15)