Rename config vars. Add widget holder template and endpoint to serve it. Add dockerfile

internal/api/payout/payout_handler.go

@@ -122,7 +122,7 @@ func (p *payoutHandler) GetSbpBanks(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// PaymentCreate implements [Handler].
+// PayoutCreate implements [Handler].
 func (p *payoutHandler) PayoutCreate(w http.ResponseWriter, r *http.Request) {
 	defer r.Body.Close()
 
@@ -203,7 +203,7 @@ func (p *payoutHandler) delayedPayoutUpdate(ctx context.Context, payoutData *yoo
 	}
 }
 
-// PaymentCallback implements [Handler].
+// PayoutCallback implements [Handler].
 func (p *payoutHandler) PayoutCallback(w http.ResponseWriter, r *http.Request) {
 	// todo: check also the X-real-ip and/or X-Forwarded-For
 	if p.yookassaConf.CheckAllowedCallbackAddress && !p.checkAllowedIpCallback(r.RemoteAddr) {