refactor: deprecate int32 (#7025)

* refactor: deprecate int32

* fix(db): reject legacy user quota schemas at startup

* fix(quota): enforce wallet bounds and saturating billing conversions

* fix(rate-limit): keep count*duration from wrapping int64

* fix: error message

controller/token.go

@@ -15,6 +15,7 @@ import (
 	"github.com/QuantumNous/new-api/setting/operation_setting"
 
 	"github.com/gin-gonic/gin"
+	"github.com/shopspring/decimal"
 )
 
 type tokenAutoGroupsInput struct {
@@ -41,6 +42,16 @@ type tokenResponse struct {
 	AutoGroups []string `json:"auto_groups"`
 }
 
+func maxTokenQuota() int {
+	quota, err := common.WalletQuotaFromDecimalStrict(
+		decimal.NewFromInt(1_000_000_000).Mul(decimal.NewFromFloat(common.QuotaPerUnit)),
+	)
+	if err != nil {
+		return common.MaxWalletQuota
+	}
+	return quota
+}
+
 func buildMaskedTokenResponse(token *model.Token) *tokenResponse {
 	if token == nil {
 		return nil
@@ -279,7 +290,7 @@ func AddToken(c *gin.Context) {
 			common.ApiErrorI18n(c, i18n.MsgTokenQuotaNegative)
 			return
 		}
-		maxQuotaValue := common.QuotaFromFloat(1000000000 * common.QuotaPerUnit)
+		maxQuotaValue := maxTokenQuota()
 		if token.RemainQuota > maxQuotaValue {
 			common.ApiErrorI18n(c, i18n.MsgTokenQuotaExceedMax, map[string]any{"Max": maxQuotaValue})
 			return
@@ -373,7 +384,7 @@ func UpdateToken(c *gin.Context) {
 			common.ApiErrorI18n(c, i18n.MsgTokenQuotaNegative)
 			return
 		}
-		maxQuotaValue := common.QuotaFromFloat(1000000000 * common.QuotaPerUnit)
+		maxQuotaValue := maxTokenQuota()
 		if token.RemainQuota > maxQuotaValue {
 			common.ApiErrorI18n(c, i18n.MsgTokenQuotaExceedMax, map[string]any{"Max": maxQuotaValue})
 			return