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/validator/wallet_validator_test.go

@@ -1,43 +0,0 @@
-package validator
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"apskel-pos-be/internal/constants"
-	"apskel-pos-be/internal/contract"
-)
-
-func TestWalletValidator_AdjustRequest(t *testing.T) {
-	v := NewWalletValidator()
-
-	ok := &contract.AdjustCustomerWalletRequest{Currency: " point ", Amount: -25, Reason: "  komplain #45  "}
-	err, _ := v.ValidateAdjustRequest(ok)
-	assert.NoError(t, err)
-	assert.Equal(t, constants.WalletCurrencyPoint, ok.Currency, "currency is normalised")
-	assert.Equal(t, "komplain #45", ok.Reason, "reason is trimmed")
-
-	legit := &contract.AdjustCustomerWalletRequest{Currency: "COIN", Amount: 5, Reason: "Bayar tunai tapi poin tidak masuk"}
-	err, _ = v.ValidateAdjustRequest(legit)
-	assert.NoError(t, err, "mentioning a cash payment is not a cash-out")
-
-	for name, req := range map[string]*contract.AdjustCustomerWalletRequest{
-		"nil":               nil,
-		"no currency":       {Amount: 5, Reason: "x"},
-		"unknown currency":  {Currency: "GOLD", Amount: 5, Reason: "x"},
-		"zero amount":       {Currency: "POINT", Amount: 0, Reason: "x"},
-		"no reason":         {Currency: "POINT", Amount: 5, Reason: "   "},
-		"reason too long":   {Currency: "POINT", Amount: 5, Reason: strings.Repeat("a", 256)},
-		"cash-out reason":   {Currency: "POINT", Amount: -500, Reason: "Pencairan saldo ke rekening"},
-		"cash-out, English": {Currency: "POINT", Amount: -500, Reason: "customer asked to cash out"},
-		"long key":          {Currency: "POINT", Amount: 5, Reason: "x", IdempotencyKey: strings.Repeat("k", 51)},
-	} {
-		t.Run(name, func(t *testing.T) {
-			err, code := v.ValidateAdjustRequest(req)
-			assert.Error(t, err)
-			assert.NotEmpty(t, code)
-		})
-	}
-}