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/constants/wallet.go

@@ -1,44 +0,0 @@
-package constants
-
-// The two balances a customer wallet holds (docs/prd-point-coin.md). EnakPoint pays
-// for orders; EnakCoin is spent on games and can be exchanged into EnakPoint.
-const (
-	WalletCurrencyPoint = "POINT"
-	WalletCurrencyCoin  = "COIN"
-)
-
-func IsValidWalletCurrency(currency string) bool {
-	return currency == WalletCurrencyPoint || currency == WalletCurrencyCoin
-}
-
-// Ledger row types. §8.1 of the PRD lists, per type, which currency it may use, which
-// way it moves the balance, and which reference it must carry.
-const (
-	WalletTxTypeEarn          = "EARN"
-	WalletTxTypeEarnReversal  = "EARN_REVERSAL"
-	WalletTxTypePayment       = "PAYMENT"
-	WalletTxTypePaymentRefund = "PAYMENT_REFUND"
-	WalletTxTypeExchangeOut   = "EXCHANGE_OUT"
-	WalletTxTypeExchangeIn    = "EXCHANGE_IN"
-	WalletTxTypeTransferOut   = "TRANSFER_OUT"
-	WalletTxTypeTransferIn    = "TRANSFER_IN"
-	WalletTxTypeGameSpend     = "GAME_SPEND"
-	WalletTxTypeExpire        = "EXPIRE"
-	WalletTxTypeAdjustment    = "ADJUSTMENT"
-	WalletTxTypeMigration     = "MIGRATION"
-	WalletTxTypeRewardRedeem  = "REWARD_REDEEM"
-)
-
-// What a ledger row's reference_id points at: where the value came from for a
-// credit, or where it went for a debit.
-const (
-	WalletRefTypeOrder            = "ORDER"
-	WalletRefTypePayment          = "PAYMENT"
-	WalletRefTypeWalletTx         = "WALLET_TX"
-	WalletRefTypeGamePlay         = "GAME_PLAY"
-	WalletRefTypeLot              = "LOT"
-	WalletRefTypeUser             = "USER"
-	WalletRefTypeLegacyPoints     = "LEGACY_POINTS"
-	WalletRefTypeLegacyTokens     = "LEGACY_TOKENS"
-	WalletRefTypeRewardRedemption = "REWARD_REDEMPTION"
-)