Reorganaze modules, add auth processing.

internal/api/payout/module.go

@@ -0,0 +1,17 @@
+package payout
+
+import (
+	"net/http"
+
+	"go.uber.org/fx"
+)
+
+var Module = fx.Options(
+	fx.Provide(NewPayoutHandler),
+)
+
+type Handler interface {
+	GetSbpBanks(http.ResponseWriter, *http.Request)
+	PayoutCreate(http.ResponseWriter, *http.Request)
+	PayoutCallback(http.ResponseWriter, *http.Request)
+}