Revert "feat(loyalty): EnakPoint & EnakCoin" (#32)

This reverts merge commit 645da30, returning main to f0ff59f.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/handler/customer_device_handler.go

@@ -1,45 +0,0 @@
-package handler
-
-import (
-	"github.com/gin-gonic/gin"
-
-	"apskel-pos-be/internal/constants"
-	"apskel-pos-be/internal/contract"
-	"apskel-pos-be/internal/service"
-	"apskel-pos-be/internal/util"
-)
-
-// CustomerDeviceHandler serves /customer/devices, where the customer app registers
-// the FCM token of each device it runs on.
-type CustomerDeviceHandler struct {
-	devices service.CustomerDeviceService
-}
-
-func NewCustomerDeviceHandler(devices service.CustomerDeviceService) *CustomerDeviceHandler {
-	return &CustomerDeviceHandler{devices: devices}
-}
-
-// Register is PUT /customer/devices.
-func (h *CustomerDeviceHandler) Register(c *gin.Context) {
-	customerID, ok := customerIDFromGin(c, "CustomerDeviceHandler::Register")
-	if !ok {
-		return
-	}
-	var req contract.RegisterCustomerDeviceRequest
-	if err := c.ShouldBindJSON(&req); err != nil {
-		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{
-			contract.NewResponseError(constants.MissingFieldErrorCode, constants.RequestEntity, "device_id and fcm_token are required"),
-		}), "CustomerDeviceHandler::Register")
-		return
-	}
-	util.HandleResponse(c.Writer, c.Request, h.devices.Register(c.Request.Context(), customerID, &req), "CustomerDeviceHandler::Register")
-}
-
-// Unregister is DELETE /customer/devices/:device_id, for logout.
-func (h *CustomerDeviceHandler) Unregister(c *gin.Context) {
-	customerID, ok := customerIDFromGin(c, "CustomerDeviceHandler::Unregister")
-	if !ok {
-		return
-	}
-	util.HandleResponse(c.Writer, c.Request, h.devices.Unregister(c.Request.Context(), customerID, c.Param("device_id")), "CustomerDeviceHandler::Unregister")
-}