feat: Add production logging gating (Phase 1, Task 1.1)

- Created logger utility with environment-based gating (lib/utils/logger.ts)
- Replaced 517 console.log statements with logger.log (71% reduction)
- Fixed import paths in 15 files (resolved comment-trapped imports)
- Added DEBUG_LOGS=false to .env
- Achieves 71% immediate log reduction (517/731 statements)
- Expected 90% reduction in production when deployed

Impact: Reduced I/O blocking, lower log volume in production
Risk: LOW (easy rollback, non-invasive)
Phase: Phase 1, Task 1.1 (Quick Wins - Console.log Production Gating)

Files changed:
- NEW: lib/utils/logger.ts (production-safe logging)
- NEW: scripts/replace-console-logs.js (automation tool)
- Modified: 15 lib/*.ts files (console.log → logger.log)
- Modified: .env (DEBUG_LOGS=false)

Next: Task 1.2 (Image Size Optimization)

.env

@@ -452,4 +452,6 @@ WITHDRAWAL_PROFIT_PERCENT=10
 MIN_WITHDRAWAL_AMOUNT=5
 MIN_ACCOUNT_BALANCE=500
 LAST_WITHDRAWAL_TIME=2025-11-19T19:34:47.185Z
-TOTAL_WITHDRAWN=12.50
+TOTAL_WITHDRAWN=12.50
+# Production Logging Configuration (Phase 1 Optimization - Dec 5, 2025)
+DEBUG_LOGS=false