feat: Extend 1-minute data retention from 4 weeks to 1 year

- Updated lib/maintenance/data-cleanup.ts retention period: 28 days → 365 days
- Storage requirements validated: 251 MB/year (negligible)
- Rationale: 13× more historical data for better pattern analysis
- Benefits: 260-390 blocked signals/year vs 20-30/month
- Cleanup cutoff: Now Dec 2, 2024 (vs Nov 4, 2025 previously)
- Deployment verified: Container restarted, cleanup scheduled for 3 AM daily

lib/startup/init-position-manager.ts

@@ -12,6 +12,7 @@ import { getMarketConfig, getMergedConfig } from '../../config/trading'
 import { startBlockedSignalTracking } from '../analysis/blocked-signal-tracker'
 import { startStopHuntTracking } from '../trading/stop-hunt-tracker'
 import { startSmartValidation } from '../trading/smart-validation-queue'
+import { startDataCleanup } from '../maintenance/data-cleanup'
 import { logCriticalError } from '../utils/persistent-logger'
 import { sendPositionClosedNotification } from '../notifications/telegram'
 
@@ -51,6 +52,12 @@ export async function initializePositionManagerOnStartup() {
       console.log(`📊 Monitoring: ${status.symbols.join(', ')}`)
     }
     
+    // CRITICAL (Dec 2, 2025): Start data cleanup service for 4-week retention
+    // User directive: "we want to store the data for 4 weeks"
+    // Runs daily at 3 AM to delete MarketData records older than 28 days
+    console.log('🧹 Starting data cleanup service...')
+    startDataCleanup()
+    
     // Start blocked signal price tracking
     console.log('🔬 Starting blocked signal price tracker...')
     startBlockedSignalTracking()