make dev/dev-debug 구분.

backend/internal/logger/client_log_policy.go

@@ -37,20 +37,25 @@ func IsProductionEnv(appEnv string) bool {
 	return IsProductionLikeEnv(appEnv)
 }
 
-func parseBoolFlag(raw string) bool {
+func parseOptionalBoolFlag(raw string) (bool, bool) {
 	switch strings.ToLower(strings.TrimSpace(raw)) {
 	case "1", "true", "yes", "y", "on":
-		return true
+		return true, true
+	case "0", "false", "no", "n", "off":
+		return false, true
 	default:
-		return false
+		return false, false
 	}
 }
 
-func ClientDebugEnabled(appEnv, productionDebugFlag string) bool {
+func ClientDebugEnabled(appEnv, debugFlag string) bool {
+	if enabled, ok := parseOptionalBoolFlag(debugFlag); ok {
+		return enabled
+	}
 	if !IsProductionEnv(appEnv) {
 		return true
 	}
-	return parseBoolFlag(productionDebugFlag)
+	return false
 }
 
 func NormalizeClientLogLevel(level string) slog.Level {