добавлен биллинг и тарифы

добавлена интеграция с юкасса

internal/transport/http/handlers/billing.go

@@ -0,0 +1,40 @@
+package handlers
+
+import (
+	"net/http"
+	"rmser/internal/infrastructure/yookassa"
+	"rmser/internal/services/billing"
+	"rmser/pkg/logger"
+
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+)
+
+type BillingHandler struct {
+	service *billing.Service
+}
+
+func NewBillingHandler(s *billing.Service) *BillingHandler {
+	return &BillingHandler{service: s}
+}
+
+func (h *BillingHandler) YooKassaWebhook(c *gin.Context) {
+	var event yookassa.WebhookEvent
+	if err := c.ShouldBindJSON(&event); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid json"})
+		return
+	}
+
+	logger.Log.Info("YooKassa Webhook received",
+		zap.String("event", event.Event),
+		zap.String("payment_id", event.Object.ID),
+	)
+
+	if err := h.service.ProcessWebhook(c.Request.Context(), event); err != nil {
+		logger.Log.Error("Failed to process webhook", zap.Error(err))
+		c.JSON(http.StatusInternalServerError, gin.H{"status": "error"})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"status": "ok"})
+}