fix: use upstream versions of shared files and remove only Sora code

Restore gateway_service.go, setting_handler.go, routes/admin.go,
dto/settings.go, group_repo.go, api_key_repo.go, wire_gen.go to
upstream/main versions and surgically remove only Sora references.

This preserves upstream-only features (RequireOauthOnly, RequirePrivacySet,
GroupResolution, etc.) that were missing when using release branch versions.

backend/internal/repository/api_key_repo.go

@@ -604,20 +604,20 @@ func userEntityToService(u *dbent.User) *service.User {
 		return nil
 	}
 	return &service.User{
-		ID:                  u.ID,
-		Email:               u.Email,
-		Username:            u.Username,
-		Notes:               u.Notes,
-		PasswordHash:        u.PasswordHash,
-		Role:                u.Role,
-		Balance:             u.Balance,
-		Concurrency:         u.Concurrency,
-		Status:              u.Status,
-		TotpSecretEncrypted: u.TotpSecretEncrypted,
-		TotpEnabled:         u.TotpEnabled,
-		TotpEnabledAt:       u.TotpEnabledAt,
-		CreatedAt:           u.CreatedAt,
-		UpdatedAt:           u.UpdatedAt,
+		ID:                    u.ID,
+		Email:                 u.Email,
+		Username:              u.Username,
+		Notes:                 u.Notes,
+		PasswordHash:          u.PasswordHash,
+		Role:                  u.Role,
+		Balance:               u.Balance,
+		Concurrency:           u.Concurrency,
+		Status:                u.Status,
+		TotpSecretEncrypted:   u.TotpSecretEncrypted,
+		TotpEnabled:           u.TotpEnabled,
+		TotpEnabledAt:         u.TotpEnabledAt,
+		CreatedAt:             u.CreatedAt,
+		UpdatedAt:             u.UpdatedAt,
 	}
 }
 
@@ -651,6 +651,8 @@ func groupEntityToService(g *dbent.Group) *service.Group {
 		SupportedModelScopes:            g.SupportedModelScopes,
 		SortOrder:                       g.SortOrder,
 		AllowMessagesDispatch:           g.AllowMessagesDispatch,
+		RequireOAuthOnly:                g.RequireOauthOnly,
+		RequirePrivacySet:               g.RequirePrivacySet,
 		DefaultMappedModel:              g.DefaultMappedModel,
 		CreatedAt:                       g.CreatedAt,
 		UpdatedAt:                       g.UpdatedAt,

backend/internal/repository/group_repo.go

@@ -56,6 +56,8 @@ func (r *groupRepository) Create(ctx context.Context, groupIn *service.Group) er
 		SetModelRoutingEnabled(groupIn.ModelRoutingEnabled).
 		SetMcpXMLInject(groupIn.MCPXMLInject).
 		SetAllowMessagesDispatch(groupIn.AllowMessagesDispatch).
+		SetRequireOauthOnly(groupIn.RequireOAuthOnly).
+		SetRequirePrivacySet(groupIn.RequirePrivacySet).
 		SetDefaultMappedModel(groupIn.DefaultMappedModel)
 
 	// 设置模型路由配置
@@ -120,6 +122,8 @@ func (r *groupRepository) Update(ctx context.Context, groupIn *service.Group) er
 		SetModelRoutingEnabled(groupIn.ModelRoutingEnabled).
 		SetMcpXMLInject(groupIn.MCPXMLInject).
 		SetAllowMessagesDispatch(groupIn.AllowMessagesDispatch).
+		SetRequireOauthOnly(groupIn.RequireOAuthOnly).
+		SetRequirePrivacySet(groupIn.RequirePrivacySet).
 		SetDefaultMappedModel(groupIn.DefaultMappedModel)
 
 	// 显式处理可空字段：nil 需要 clear，非 nil 需要 set。

backend/internal/service/gateway_service.go

@@ -60,6 +60,7 @@ const (
 	claudeMimicDebugInfoKey = "claude_mimic_debug_info"
 )
 
+
 // ForceCacheBillingContextKey 强制缓存计费上下文键
 // 用于粘性会话切换时，将 input_tokens 转为 cache_read_input_tokens 计费
 type forceCacheBillingKeyType struct{}
@@ -503,6 +504,7 @@ type ForwardResult struct {
 	// 图片生成计费字段（图片生成模型使用）
 	ImageCount int    // 生成的图片数量
 	ImageSize  string // 图片尺寸 "1K", "2K", "4K"
+
 }
 
 // UpstreamFailoverError indicates an upstream error that should trigger account failover.
@@ -1330,11 +1332,6 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 	ctx = s.withWindowCostPrefetch(ctx, accounts)
 	ctx = s.withRPMPrefetch(ctx, accounts)
 
-	// 提前构建 accountByID（供 Layer 1 和 Layer 1.5 使用）
-	accountByID := make(map[int64]*Account, len(accounts))
-	for i := range accounts {
-		accountByID[accounts[i].ID] = &accounts[i]
-	}
 	isExcluded := func(accountID int64) bool {
 		if excludedIDs == nil {
 			return false
@@ -1343,6 +1340,12 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 		return excluded
 	}
 
+	// 提前构建 accountByID（供 Layer 1 和 Layer 1.5 使用）
+	accountByID := make(map[int64]*Account, len(accounts))
+	for i := range accounts {
+		accountByID[accounts[i].ID] = &accounts[i]
+	}
+
 	// 获取模型路由配置（仅 anthropic 平台）
 	var routingAccountIDs []int64
 	if group != nil && requestedModel != "" && group.Platform == PlatformAnthropic {
@@ -1430,19 +1433,24 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 				if containsInt64(routingAccountIDs, stickyAccountID) && !isExcluded(stickyAccountID) {
 					// 粘性账号在路由列表中，优先使用
 					if stickyAccount, ok := accountByID[stickyAccountID]; ok {
-						if s.isAccountSchedulableForSelection(stickyAccount) &&
+						var stickyCacheMissReason string
+
+						gatePass := s.isAccountSchedulableForSelection(stickyAccount) &&
 							s.isAccountAllowedForPlatform(stickyAccount, platform, useMixed) &&
 							(requestedModel == "" || s.isModelSupportedByAccountWithContext(ctx, stickyAccount, requestedModel)) &&
 							s.isAccountSchedulableForModelSelection(ctx, stickyAccount, requestedModel) &&
 							s.isAccountSchedulableForQuota(stickyAccount) &&
-							s.isAccountSchedulableForWindowCost(ctx, stickyAccount, true) &&
+							s.isAccountSchedulableForWindowCost(ctx, stickyAccount, true)
+
+						rpmPass := gatePass && s.isAccountSchedulableForRPM(ctx, stickyAccount, true)
 
-							s.isAccountSchedulableForRPM(ctx, stickyAccount, true) { // 粘性会话窗口费用+RPM 检查
+						if rpmPass { // 粘性会话窗口费用+RPM 检查
 							result, err := s.tryAcquireAccountSlot(ctx, stickyAccountID, stickyAccount.Concurrency)
 							if err == nil && result.Acquired {
 								// 会话数量限制检查
 								if !s.checkAndRegisterSession(ctx, stickyAccount, sessionHash) {
 									result.ReleaseFunc() // 释放槽位
+									stickyCacheMissReason = "session_limit"
 									// 继续到负载感知选择
 								} else {
 									if s.debugModelRoutingEnabled() {
@@ -1456,27 +1464,49 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 								}
 							}
 
-							waitingCount, _ := s.concurrencyService.GetAccountWaitingCount(ctx, stickyAccountID)
-							if waitingCount < cfg.StickySessionMaxWaiting {
-								// 会话数量限制检查（等待计划也需要占用会话配额）
-								if !s.checkAndRegisterSession(ctx, stickyAccount, sessionHash) {
-									// 会话限制已满，继续到负载感知选择
+							if stickyCacheMissReason == "" {
+								waitingCount, _ := s.concurrencyService.GetAccountWaitingCount(ctx, stickyAccountID)
+								if waitingCount < cfg.StickySessionMaxWaiting {
+									// 会话数量限制检查（等待计划也需要占用会话配额）
+									if !s.checkAndRegisterSession(ctx, stickyAccount, sessionHash) {
+										stickyCacheMissReason = "session_limit"
+										// 会话限制已满，继续到负载感知选择
+									} else {
+										return &AccountSelectionResult{
+											Account: stickyAccount,
+											WaitPlan: &AccountWaitPlan{
+												AccountID:      stickyAccountID,
+												MaxConcurrency: stickyAccount.Concurrency,
+												Timeout:        cfg.StickySessionWaitTimeout,
+												MaxWaiting:     cfg.StickySessionMaxWaiting,
+											},
+										}, nil
+									}
 								} else {
-									return &AccountSelectionResult{
-										Account: stickyAccount,
-										WaitPlan: &AccountWaitPlan{
-											AccountID:      stickyAccountID,
-											MaxConcurrency: stickyAccount.Concurrency,
-											Timeout:        cfg.StickySessionWaitTimeout,
-											MaxWaiting:     cfg.StickySessionMaxWaiting,
-										},
-									}, nil
+									stickyCacheMissReason = "wait_queue_full"
 								}
 							}
 							// 粘性账号槽位满且等待队列已满，继续使用负载感知选择
+						} else if !gatePass {
+							stickyCacheMissReason = "gate_check"
+						} else {
+							stickyCacheMissReason = "rpm_red"
+						}
+
+						// 记录粘性缓存未命中的结构化日志
+						if stickyCacheMissReason != "" {
+							baseRPM := stickyAccount.GetBaseRPM()
+							var currentRPM int
+							if count, ok := rpmFromPrefetchContext(ctx, stickyAccount.ID); ok {
+								currentRPM = count
+							}
+							logger.LegacyPrintf("service.gateway", "[StickyCacheMiss] reason=%s account_id=%d session=%s current_rpm=%d base_rpm=%d",
+								stickyCacheMissReason, stickyAccountID, shortSessionHash(sessionHash), currentRPM, baseRPM)
 						}
 					} else {
 						_ = s.cache.DeleteSessionAccountID(ctx, derefGroupID(groupID), sessionHash)
+						logger.LegacyPrintf("service.gateway", "[StickyCacheMiss] reason=account_cleared account_id=%d session=%s current_rpm=0 base_rpm=0",
+							stickyAccountID, shortSessionHash(sessionHash))
 					}
 				}
 			}
@@ -1582,6 +1612,7 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 			account, ok := accountByID[accountID]
 			if ok {
 				// 检查账户是否需要清理粘性会话绑定
+				// Check if the account needs sticky session cleanup
 				clearSticky := shouldClearStickySession(account, requestedModel)
 				if clearSticky {
 					_ = s.cache.DeleteSessionAccountID(ctx, derefGroupID(groupID), sessionHash)
@@ -1597,6 +1628,7 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 					result, err := s.tryAcquireAccountSlot(ctx, accountID, account.Concurrency)
 					if err == nil && result.Acquired {
 						// 会话数量限制检查
+						// Session count limit check
 						if !s.checkAndRegisterSession(ctx, account, sessionHash) {
 							result.ReleaseFunc() // 释放槽位，继续到 Layer 2
 						} else {
@@ -1611,8 +1643,10 @@ func (s *GatewayService) SelectAccountWithLoadAwareness(ctx context.Context, gro
 					waitingCount, _ := s.concurrencyService.GetAccountWaitingCount(ctx, accountID)
 					if waitingCount < cfg.StickySessionMaxWaiting {
 						// 会话数量限制检查（等待计划也需要占用会话配额）
+						// Session count limit check (wait plan also requires session quota)
 						if !s.checkAndRegisterSession(ctx, account, sessionHash) {
 							// 会话限制已满，继续到 Layer 2
+							// Session limit full, continue to Layer 2
 						} else {
 							return &AccountSelectionResult{
 								Account: account,
@@ -2673,6 +2707,12 @@ func (s *GatewayService) selectAccountForModelWithPlatform(ctx context.Context,
 	preferOAuth := platform == PlatformGemini
 	routingAccountIDs := s.routingAccountIDsForRequest(ctx, groupID, requestedModel, platform)
 
+	// require_privacy_set: 获取分组信息
+	var schedGroup *Group
+	if groupID != nil && s.groupRepo != nil {
+		schedGroup, _ = s.groupRepo.GetByID(ctx, *groupID)
+	}
+
 	var accounts []Account
 	accountsLoaded := false
 
@@ -2696,7 +2736,7 @@ func (s *GatewayService) selectAccountForModelWithPlatform(ctx context.Context,
 						if clearSticky {
 							_ = s.cache.DeleteSessionAccountID(ctx, derefGroupID(groupID), sessionHash)
 						}
-						if !clearSticky && s.isAccountInGroup(account, groupID) && account.Platform == platform && (requestedModel == "" || s.isModelSupportedByAccountWithContext(ctx, account, requestedModel)) && s.isAccountSchedulableForModelSelection(ctx, account, requestedModel) && s.isAccountSchedulableForQuota(account) && s.isAccountSchedulableForWindowCost(ctx, account, true) && s.isAccountSchedulableForRPM(ctx, account, true) && !s.isStickyAccountUpstreamRestricted(ctx, groupID, account, requestedModel) {
+						if !clearSticky && s.isAccountInGroup(account, groupID) && account.Platform == platform && (requestedModel == "" || s.isModelSupportedByAccountWithContext(ctx, account, requestedModel)) && s.isAccountSchedulableForModelSelection(ctx, account, requestedModel) && s.isAccountSchedulableForQuota(account) && s.isAccountSchedulableForWindowCost(ctx, account, true) && s.isAccountSchedulableForRPM(ctx, account, true) {
 							if s.debugModelRoutingEnabled() {
 								logger.LegacyPrintf("service.gateway", "[ModelRoutingDebug] legacy routed sticky hit: group_id=%v model=%s session=%s account=%d", derefGroupID(groupID), requestedModel, shortSessionHash(sessionHash), accountID)
 							}
@@ -2744,6 +2784,12 @@ func (s *GatewayService) selectAccountForModelWithPlatform(ctx context.Context,
 			if !s.isAccountSchedulableForSelection(acc) {
 				continue
 			}
+			// require_privacy_set: 跳过 privacy 未设置的账号并标记异常
+			if schedGroup != nil && schedGroup.RequirePrivacySet && !acc.IsPrivacySet() {
+				_ = s.accountRepo.SetError(ctx, acc.ID,
+					fmt.Sprintf("Privacy not set, required by group [%s]", schedGroup.Name))
+				continue
+			}
 			if requestedModel != "" && !s.isModelSupportedByAccountWithContext(ctx, acc, requestedModel) {
 				continue
 			}
@@ -2849,6 +2895,12 @@ func (s *GatewayService) selectAccountForModelWithPlatform(ctx context.Context,
 		if !s.isAccountSchedulableForSelection(acc) {
 			continue
 		}
+		// require_privacy_set: 跳过 privacy 未设置的账号并标记异常
+		if schedGroup != nil && schedGroup.RequirePrivacySet && !acc.IsPrivacySet() {
+			_ = s.accountRepo.SetError(ctx, acc.ID,
+				fmt.Sprintf("Privacy not set, required by group [%s]", schedGroup.Name))
+			continue
+		}
 		if requestedModel != "" && !s.isModelSupportedByAccountWithContext(ctx, acc, requestedModel) {
 			continue
 		}
@@ -2915,6 +2967,12 @@ func (s *GatewayService) selectAccountWithMixedScheduling(ctx context.Context, g
 	preferOAuth := nativePlatform == PlatformGemini
 	routingAccountIDs := s.routingAccountIDsForRequest(ctx, groupID, requestedModel, nativePlatform)
 
+	// require_privacy_set: 获取分组信息
+	var schedGroup *Group
+	if groupID != nil && s.groupRepo != nil {
+		schedGroup, _ = s.groupRepo.GetByID(ctx, *groupID)
+	}
+
 	var accounts []Account
 	accountsLoaded := false
 
@@ -2982,6 +3040,12 @@ func (s *GatewayService) selectAccountWithMixedScheduling(ctx context.Context, g
 			if !s.isAccountSchedulableForSelection(acc) {
 				continue
 			}
+			// require_privacy_set: 跳过 privacy 未设置的账号并标记异常
+			if schedGroup != nil && schedGroup.RequirePrivacySet && !acc.IsPrivacySet() {
+				_ = s.accountRepo.SetError(ctx, acc.ID,
+					fmt.Sprintf("Privacy not set, required by group [%s]", schedGroup.Name))
+				continue
+			}
 			// 过滤：原生平台直接通过，antigravity 需要启用混合调度
 			if acc.Platform == PlatformAntigravity && !acc.IsMixedSchedulingEnabled() {
 				continue
@@ -3051,7 +3115,7 @@ func (s *GatewayService) selectAccountWithMixedScheduling(ctx context.Context, g
 					if clearSticky {
 						_ = s.cache.DeleteSessionAccountID(ctx, derefGroupID(groupID), sessionHash)
 					}
-					if !clearSticky && s.isAccountInGroup(account, groupID) && (requestedModel == "" || s.isModelSupportedByAccountWithContext(ctx, account, requestedModel)) && s.isAccountSchedulableForModelSelection(ctx, account, requestedModel) && s.isAccountSchedulableForQuota(account) && s.isAccountSchedulableForWindowCost(ctx, account, true) && s.isAccountSchedulableForRPM(ctx, account, true) && !s.isStickyAccountUpstreamRestricted(ctx, groupID, account, requestedModel) {
+					if !clearSticky && s.isAccountInGroup(account, groupID) && (requestedModel == "" || s.isModelSupportedByAccountWithContext(ctx, account, requestedModel)) && s.isAccountSchedulableForModelSelection(ctx, account, requestedModel) && s.isAccountSchedulableForQuota(account) && s.isAccountSchedulableForWindowCost(ctx, account, true) && s.isAccountSchedulableForRPM(ctx, account, true) {
 						if account.Platform == nativePlatform || (account.Platform == PlatformAntigravity && account.IsMixedSchedulingEnabled()) {
 							return account, nil
 						}
@@ -3075,6 +3139,7 @@ func (s *GatewayService) selectAccountWithMixedScheduling(ctx context.Context, g
 	ctx = s.withRPMPrefetch(ctx, accounts)
 
 	// 3. 按优先级+最久未用选择（考虑模型支持和混合调度）
+	// needsUpstreamCheck 仅在主选择循环中使用；粘性会话命中时跳过此检查。
 	needsUpstreamCheck := s.needsUpstreamChannelRestrictionCheck(ctx, groupID)
 	var selected *Account
 	for i := range accounts {
@@ -3087,6 +3152,12 @@ func (s *GatewayService) selectAccountWithMixedScheduling(ctx context.Context, g
 		if !s.isAccountSchedulableForSelection(acc) {
 			continue
 		}
+		// require_privacy_set: 跳过 privacy 未设置的账号并标记异常
+		if schedGroup != nil && schedGroup.RequirePrivacySet && !acc.IsPrivacySet() {
+			_ = s.accountRepo.SetError(ctx, acc.ID,
+				fmt.Sprintf("Privacy not set, required by group [%s]", schedGroup.Name))
+			continue
+		}
 		// 过滤：原生平台直接通过，antigravity 需要启用混合调度
 		if acc.Platform == PlatformAntigravity && !acc.IsMixedSchedulingEnabled() {
 			continue
@@ -3254,8 +3325,7 @@ func (s *GatewayService) diagnoseSelectionFailure(
 		return selectionFailureDiagnosis{Category: "excluded"}
 	}
 	if !s.isAccountSchedulableForSelection(acc) {
-		detail := "generic_unschedulable"
-		return selectionFailureDiagnosis{Category: "unschedulable", Detail: detail}
+		return selectionFailureDiagnosis{Category: "unschedulable", Detail: "generic_unschedulable"}
 	}
 	if isPlatformFilteredForSelection(acc, platform, allowMixedScheduling) {
 		return selectionFailureDiagnosis{
@@ -3279,7 +3349,6 @@ func (s *GatewayService) diagnoseSelectionFailure(
 	return selectionFailureDiagnosis{Category: "eligible"}
 }
 
-// GetAccessToken 获取账号凭证
 func isPlatformFilteredForSelection(acc *Account, platform string, allowMixedScheduling bool) bool {
 	if acc == nil {
 		return true
@@ -3362,10 +3431,6 @@ func (s *GatewayService) isModelSupportedByAccount(account *Account, requestedMo
 		_, ok := ResolveBedrockModelID(account, requestedModel)
 		return ok
 	}
-	// OpenAI 透传模式：仅替换认证，允许所有模型
-	if account.Platform == PlatformOpenAI && account.IsOpenAIPassthroughEnabled() {
-		return true
-	}
 	// OAuth/SetupToken 账号使用 Anthropic 标准映射（短ID → 长ID）
 	if account.Platform == PlatformAnthropic && account.Type != AccountTypeAPIKey {
 		requestedModel = claude.NormalizeModelID(requestedModel)
@@ -7083,7 +7148,6 @@ func (s *GatewayService) getUserGroupRateMultiplier(ctx context.Context, userID,
 // RecordUsageInput 记录使用量的输入参数
 type RecordUsageInput struct {
 	Result             *ForwardResult
-	ParsedRequest      *ParsedRequest
 	APIKey             *APIKey
 	User               *User
 	Account            *Account
@@ -7242,9 +7306,6 @@ func buildUsageBillingCommand(requestID string, usageLog *UsageLog, p *postUsage
 		cmd.CacheCreationTokens = usageLog.CacheCreationTokens
 		cmd.CacheReadTokens = usageLog.CacheReadTokens
 		cmd.ImageCount = usageLog.ImageCount
-		if usageLog.MediaType != nil {
-			cmd.MediaType = *usageLog.MediaType
-		}
 		if usageLog.ServiceTier != nil {
 			cmd.ServiceTier = *usageLog.ServiceTier
 		}
@@ -7395,11 +7456,11 @@ func writeUsageLogBestEffort(ctx context.Context, repo UsageLogRepository, usage
 
 // recordUsageOpts 内部选项，参数化 RecordUsage 与 RecordUsageWithLongContext 的差异点。
 type recordUsageOpts struct {
-	// ParsedRequest（可选，仅 Claude 路径传入）
+	// Claude Max 策略所需的 ParsedRequest（可选，仅 Claude 路径传入）
 	ParsedRequest *ParsedRequest
 
 	// EnableClaudePath 启用 Claude 路径特有逻辑：
-	// - MediaType 字段写入使用日志
+	// - Claude Max 缓存计费策略
 	EnableClaudePath bool
 
 	// 长上下文计费（仅 Gemini 路径需要）
@@ -7424,7 +7485,6 @@ func (s *GatewayService) RecordUsage(ctx context.Context, input *RecordUsageInpu
 		APIKeyService:      input.APIKeyService,
 		ChannelUsageFields: input.ChannelUsageFields,
 	}, &recordUsageOpts{
-		ParsedRequest:    input.ParsedRequest,
 		EnableClaudePath: true,
 	})
 }
@@ -7490,6 +7550,7 @@ type recordUsageCoreInput struct {
 
 // recordUsageCore 是 RecordUsage 和 RecordUsageWithLongContext 的统一实现。
 // opts 中的字段控制两者之间的差异行为：
+// - ParsedRequest != nil → 启用 Claude Max 缓存计费策略
 // - LongContextThreshold > 0 → Token 计费回退走 CalculateCostWithLongContext
 func (s *GatewayService) recordUsageCore(ctx context.Context, input *recordUsageCoreInput, opts *recordUsageOpts) error {
 	result := input.Result
@@ -7748,13 +7809,12 @@ func (s *GatewayService) buildRecordUsageLog(
 		RateMultiplier:        multiplier,
 		AccountRateMultiplier: &accountRateMultiplier,
 		BillingType:           billingType,
-		BillingMode:           resolveBillingMode(opts, result, cost),
+		BillingMode:           resolveBillingMode(result, cost),
 		Stream:                result.Stream,
 		DurationMs:            &durationMs,
 		FirstTokenMs:          result.FirstTokenMs,
 		ImageCount:            result.ImageCount,
 		ImageSize:             optionalTrimmedStringPtr(result.ImageSize),
-		MediaType:             resolveMediaType(opts, result),
 		CacheTTLOverridden:    cacheTTLOverridden,
 		ChannelID:             optionalInt64Ptr(input.ChannelID),
 		ModelMappingChain:     optionalTrimmedStringPtr(input.ModelMappingChain),
@@ -7778,7 +7838,7 @@ func (s *GatewayService) buildRecordUsageLog(
 }
 
 // resolveBillingMode 根据计费结果和请求类型确定计费模式。
-func resolveBillingMode(opts *recordUsageOpts, result *ForwardResult, cost *CostBreakdown) *string {
+func resolveBillingMode(result *ForwardResult, cost *CostBreakdown) *string {
 	var mode string
 	switch {
 	case cost != nil && cost.BillingMode != "":
@@ -7791,10 +7851,6 @@ func resolveBillingMode(opts *recordUsageOpts, result *ForwardResult, cost *Cost
 	return &mode
 }
 
-func resolveMediaType(opts *recordUsageOpts, result *ForwardResult) *string {
-	return nil
-}
-
 func optionalSubscriptionID(subscription *UserSubscription) *int64 {
 	if subscription != nil {
 		return &subscription.ID
@@ -7899,19 +7955,6 @@ func (s *GatewayService) needsUpstreamChannelRestrictionCheck(ctx context.Contex
 	return ch.BillingModelSource == BillingModelSourceUpstream
 }
 
-// isStickyAccountUpstreamRestricted 检查粘性会话命中的账号是否受 upstream 渠道限制。
-// 合并 needsUpstreamChannelRestrictionCheck + isUpstreamModelRestrictedByChannel 两步调用，
-// 供 sticky session 条件链使用，避免内联多个函数调用导致行过长。
-func (s *GatewayService) isStickyAccountUpstreamRestricted(ctx context.Context, groupID *int64, account *Account, requestedModel string) bool {
-	if groupID == nil {
-		return false
-	}
-	if !s.needsUpstreamChannelRestrictionCheck(ctx, groupID) {
-		return false
-	}
-	return s.isUpstreamModelRestrictedByChannel(ctx, *groupID, account, requestedModel)
-}
-
 // ForwardCountTokens 转发 count_tokens 请求到上游 API
 // 特点：不记录使用量、仅支持非流式响应
 func (s *GatewayService) ForwardCountTokens(ctx context.Context, c *gin.Context, account *Account, parsed *ParsedRequest) error {