Maint: package local narrow Logger interfaces

internal/routing/logger.go

@@ -0,0 +1,10 @@
+package routing
+
+//go:generate mockgen -destination=logger_mock_test.go -package routing . Logger
+
+type Logger interface {
+	Debug(s string)
+	Info(s string)
+	Warn(s string)
+	Error(s string)
+}