senke 872e42d81c refactor(backend): replace 40 fmt.Printf calls with zap structured logging ... CLN-03: router.go, track/service.go, upload_validator.go, cors.go, playlist_handler.go, and mfa.go now use zap.L() or local logger for structured logging instead of fmt.Printf.		2026-02-22 17:44:38 +01:00
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mfa.go	refactor(backend): replace 40 fmt.Printf calls with zap structured logging	2026-02-22 17:44:38 +01:00