feat(网关): 引入 OpenAI/Claude OAuth token 缓存

新增 OpenAI/Claude TokenProvider 与缓存键生成
扩展 OAuth 缓存失效覆盖更多平台
统一 OAuth 缓存前缀与依赖注入

backend/cmd/server/wire_gen.go

@@ -100,8 +100,8 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	tempUnschedCache := repository.NewTempUnschedCache(redisClient)
 	timeoutCounterCache := repository.NewTimeoutCounterCache(redisClient)
 	geminiTokenCache := repository.NewGeminiTokenCache(redisClient)
-	tokenCacheInvalidator := service.NewCompositeTokenCacheInvalidator(geminiTokenCache)
-	rateLimitService := service.ProvideRateLimitService(accountRepository, usageLogRepository, configConfig, geminiQuotaService, tempUnschedCache, timeoutCounterCache, settingService, tokenCacheInvalidator)
+	compositeTokenCacheInvalidator := service.NewCompositeTokenCacheInvalidator(geminiTokenCache)
+	rateLimitService := service.ProvideRateLimitService(accountRepository, usageLogRepository, configConfig, geminiQuotaService, tempUnschedCache, timeoutCounterCache, settingService, compositeTokenCacheInvalidator)
 	claudeUsageFetcher := repository.NewClaudeUsageFetcher()
 	antigravityQuotaFetcher := service.NewAntigravityQuotaFetcher(proxyRepository)
 	usageCache := service.NewUsageCache()
@@ -136,8 +136,10 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	identityCache := repository.NewIdentityCache(redisClient)
 	identityService := service.NewIdentityService(identityCache)
 	deferredService := service.ProvideDeferredService(accountRepository, timingWheelService)
-	gatewayService := service.NewGatewayService(accountRepository, groupRepository, usageLogRepository, userRepository, userSubscriptionRepository, gatewayCache, configConfig, schedulerSnapshotService, concurrencyService, billingService, rateLimitService, billingCacheService, identityService, httpUpstream, deferredService)
-	openAIGatewayService := service.NewOpenAIGatewayService(accountRepository, usageLogRepository, userRepository, userSubscriptionRepository, gatewayCache, configConfig, schedulerSnapshotService, concurrencyService, billingService, rateLimitService, billingCacheService, httpUpstream, deferredService)
+	claudeTokenProvider := service.NewClaudeTokenProvider(accountRepository, geminiTokenCache, oAuthService)
+	gatewayService := service.NewGatewayService(accountRepository, groupRepository, usageLogRepository, userRepository, userSubscriptionRepository, gatewayCache, configConfig, schedulerSnapshotService, concurrencyService, billingService, rateLimitService, billingCacheService, identityService, httpUpstream, deferredService, claudeTokenProvider)
+	openAITokenProvider := service.NewOpenAITokenProvider(accountRepository, geminiTokenCache, openAIOAuthService)
+	openAIGatewayService := service.NewOpenAIGatewayService(accountRepository, usageLogRepository, userRepository, userSubscriptionRepository, gatewayCache, configConfig, schedulerSnapshotService, concurrencyService, billingService, rateLimitService, billingCacheService, httpUpstream, deferredService, openAITokenProvider)
 	geminiMessagesCompatService := service.NewGeminiMessagesCompatService(accountRepository, groupRepository, gatewayCache, schedulerSnapshotService, geminiTokenProvider, rateLimitService, httpUpstream, antigravityGatewayService, configConfig)
 	opsService := service.NewOpsService(opsRepository, settingRepository, configConfig, accountRepository, concurrencyService, gatewayService, openAIGatewayService, geminiMessagesCompatService, antigravityGatewayService)
 	settingHandler := admin.NewSettingHandler(settingService, emailService, turnstileService, opsService)
@@ -168,7 +170,7 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	opsAlertEvaluatorService := service.ProvideOpsAlertEvaluatorService(opsService, opsRepository, emailService, redisClient, configConfig)
 	opsCleanupService := service.ProvideOpsCleanupService(opsRepository, db, redisClient, configConfig)
 	opsScheduledReportService := service.ProvideOpsScheduledReportService(opsService, userService, emailService, redisClient, configConfig)
-	tokenRefreshService := service.ProvideTokenRefreshService(accountRepository, oAuthService, openAIOAuthService, geminiOAuthService, antigravityOAuthService, tokenCacheInvalidator, configConfig)
+	tokenRefreshService := service.ProvideTokenRefreshService(accountRepository, oAuthService, openAIOAuthService, geminiOAuthService, antigravityOAuthService, compositeTokenCacheInvalidator, configConfig)
 	accountExpiryService := service.ProvideAccountExpiryService(accountRepository)
 	v := provideCleanup(client, redisClient, opsMetricsCollector, opsAggregationService, opsAlertEvaluatorService, opsCleanupService, opsScheduledReportService, schedulerSnapshotService, tokenRefreshService, accountExpiryService, pricingService, emailQueueService, billingCacheService, oAuthService, openAIOAuthService, geminiOAuthService, antigravityOAuthService)
 	application := &Application{

backend/internal/repository/gemini_token_cache.go

@@ -11,8 +11,8 @@ import (
 )
 
 const (
-	geminiTokenKeyPrefix       = "gemini:token:"
-	geminiRefreshLockKeyPrefix = "gemini:refresh_lock:"
+	oauthTokenKeyPrefix       = "oauth:token:"
+	oauthRefreshLockKeyPrefix = "oauth:refresh_lock:"
 )
 
 type geminiTokenCache struct {
@@ -24,26 +24,26 @@ func NewGeminiTokenCache(rdb *redis.Client) service.GeminiTokenCache {
 }
 
 func (c *geminiTokenCache) GetAccessToken(ctx context.Context, cacheKey string) (string, error) {
-	key := fmt.Sprintf("%s%s", geminiTokenKeyPrefix, cacheKey)
+	key := fmt.Sprintf("%s%s", oauthTokenKeyPrefix, cacheKey)
 	return c.rdb.Get(ctx, key).Result()
 }
 
 func (c *geminiTokenCache) SetAccessToken(ctx context.Context, cacheKey string, token string, ttl time.Duration) error {
-	key := fmt.Sprintf("%s%s", geminiTokenKeyPrefix, cacheKey)
+	key := fmt.Sprintf("%s%s", oauthTokenKeyPrefix, cacheKey)
 	return c.rdb.Set(ctx, key, token, ttl).Err()
 }
 
 func (c *geminiTokenCache) DeleteAccessToken(ctx context.Context, cacheKey string) error {
-	key := fmt.Sprintf("%s%s", geminiTokenKeyPrefix, cacheKey)
+	key := fmt.Sprintf("%s%s", oauthTokenKeyPrefix, cacheKey)
 	return c.rdb.Del(ctx, key).Err()
 }
 
 func (c *geminiTokenCache) AcquireRefreshLock(ctx context.Context, cacheKey string, ttl time.Duration) (bool, error) {
-	key := fmt.Sprintf("%s%s", geminiRefreshLockKeyPrefix, cacheKey)
+	key := fmt.Sprintf("%s%s", oauthRefreshLockKeyPrefix, cacheKey)
 	return c.rdb.SetNX(ctx, key, 1, ttl).Result()
 }
 
 func (c *geminiTokenCache) ReleaseRefreshLock(ctx context.Context, cacheKey string) error {
-	key := fmt.Sprintf("%s%s", geminiRefreshLockKeyPrefix, cacheKey)
+	key := fmt.Sprintf("%s%s", oauthRefreshLockKeyPrefix, cacheKey)
 	return c.rdb.Del(ctx, key).Err()
 }

backend/internal/service/claude_token_provider.go

+package service
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const (
+	claudeTokenRefreshSkew = 3 * time.Minute
+	claudeTokenCacheSkew   = 5 * time.Minute
+	claudeLockWaitTime     = 200 * time.Millisecond
+)
+
+// ClaudeTokenCache Token 缓存接口（复用 GeminiTokenCache 接口定义）
+type ClaudeTokenCache = GeminiTokenCache
+
+// ClaudeTokenProvider 管理 Claude (Anthropic) OAuth 账户的 access_token
+type ClaudeTokenProvider struct {
+	accountRepo  AccountRepository
+	tokenCache   ClaudeTokenCache
+	oauthService *OAuthService
+}
+
+func NewClaudeTokenProvider(
+	accountRepo AccountRepository,
+	tokenCache ClaudeTokenCache,
+	oauthService *OAuthService,
+) *ClaudeTokenProvider {
+	return &ClaudeTokenProvider{
+		accountRepo:  accountRepo,
+		tokenCache:   tokenCache,
+		oauthService: oauthService,
+	}
+}
+
+// GetAccessToken 获取有效的 access_token
+func (p *ClaudeTokenProvider) GetAccessToken(ctx context.Context, account *Account) (string, error) {
+	if account == nil {
+		return "", errors.New("account is nil")
+	}
+	if account.Platform != PlatformAnthropic || account.Type != AccountTypeOAuth {
+		return "", errors.New("not an anthropic oauth account")
+	}
+
+	cacheKey := ClaudeTokenCacheKey(account)
+
+	// 1. 先尝试缓存
+	if p.tokenCache != nil {
+		if token, err := p.tokenCache.GetAccessToken(ctx, cacheKey); err == nil && strings.TrimSpace(token) != "" {
+			slog.Debug("claude_token_cache_hit", "account_id", account.ID)
+			return token, nil
+		} else if err != nil {
+			slog.Warn("claude_token_cache_get_failed", "account_id", account.ID, "error", err)
+		}
+	}
+
+	slog.Debug("claude_token_cache_miss", "account_id", account.ID)
+
+	// 2. 如果即将过期则刷新
+	expiresAt := account.GetCredentialAsTime("expires_at")
+	needsRefresh := expiresAt == nil || time.Until(*expiresAt) <= claudeTokenRefreshSkew
+	refreshFailed := false
+	if needsRefresh && p.tokenCache != nil {
+		locked, err := p.tokenCache.AcquireRefreshLock(ctx, cacheKey, 30*time.Second)
+		if err == nil && locked {
+			defer func() { _ = p.tokenCache.ReleaseRefreshLock(ctx, cacheKey) }()
+
+			// 拿到锁后再次检查缓存（另一个 worker 可能已刷新）
+			if token, err := p.tokenCache.GetAccessToken(ctx, cacheKey); err == nil && strings.TrimSpace(token) != "" {
+				return token, nil
+			}
+
+			// 从数据库获取最新账户信息
+			fresh, err := p.accountRepo.GetByID(ctx, account.ID)
+			if err == nil && fresh != nil {
+				account = fresh
+			}
+			expiresAt = account.GetCredentialAsTime("expires_at")
+			if expiresAt == nil || time.Until(*expiresAt) <= claudeTokenRefreshSkew {
+				if p.oauthService == nil {
+					slog.Warn("claude_oauth_service_not_configured", "account_id", account.ID)
+					refreshFailed = true // 无法刷新，标记失败
+				} else {
+					tokenInfo, err := p.oauthService.RefreshAccountToken(ctx, account)
+					if err != nil {
+						// 刷新失败时记录警告，但不立即返回错误，尝试使用现有 token
+						slog.Warn("claude_token_refresh_failed", "account_id", account.ID, "error", err)
+						refreshFailed = true // 刷新失败，标记以使用短 TTL
+					} else {
+						// 构建新 credentials，保留原有字段
+						newCredentials := make(map[string]any)
+						for k, v := range account.Credentials {
+							newCredentials[k] = v
+						}
+						newCredentials["access_token"] = tokenInfo.AccessToken
+						newCredentials["token_type"] = tokenInfo.TokenType
+						newCredentials["expires_in"] = strconv.FormatInt(tokenInfo.ExpiresIn, 10)
+						newCredentials["expires_at"] = strconv.FormatInt(tokenInfo.ExpiresAt, 10)
+						if tokenInfo.RefreshToken != "" {
+							newCredentials["refresh_token"] = tokenInfo.RefreshToken
+						}
+						if tokenInfo.Scope != "" {
+							newCredentials["scope"] = tokenInfo.Scope
+						}
+						account.Credentials = newCredentials
+						if updateErr := p.accountRepo.Update(ctx, account); updateErr != nil {
+							slog.Error("claude_token_provider_update_failed", "account_id", account.ID, "error", updateErr)
+						}
+						expiresAt = account.GetCredentialAsTime("expires_at")
+					}
+				}
+			}
+		} else {
+			// 锁获取失败，等待 200ms 后重试读取缓存（改进：减少并发时的缓存未命中）
+			time.Sleep(claudeLockWaitTime)
+			if token, err := p.tokenCache.GetAccessToken(ctx, cacheKey); err == nil && strings.TrimSpace(token) != "" {
+				slog.Debug("claude_token_cache_hit_after_wait", "account_id", account.ID)
+				return token, nil
+			}
+		}
+	}
+
+	accessToken := account.GetCredential("access_token")
+	if strings.TrimSpace(accessToken) == "" {
+		return "", errors.New("access_token not found in credentials")
+	}
+
+	// 3. 存入缓存
+	if p.tokenCache != nil {
+		ttl := 30 * time.Minute
+		if refreshFailed {
+			// 刷新失败时使用短 TTL，避免失效 token 长时间缓存导致 401 抖动
+			ttl = time.Minute
+			slog.Debug("claude_token_cache_short_ttl", "account_id", account.ID, "reason", "refresh_failed")
+		} else if expiresAt != nil {
+			until := time.Until(*expiresAt)
+			switch {
+			case until > claudeTokenCacheSkew:
+				ttl = until - claudeTokenCacheSkew
+			case until > 0:
+				ttl = until
+			default:
+				ttl = time.Minute
+			}
+		}
+		if err := p.tokenCache.SetAccessToken(ctx, cacheKey, accessToken, ttl); err != nil {
+			slog.Warn("claude_token_cache_set_failed", "account_id", account.ID, "error", err)
+		}
+	}
+
+	return accessToken, nil
+}

backend/internal/service/gateway_service.go

@@ -144,21 +144,22 @@ func (e *UpstreamFailoverError) Error() string {
 
 // GatewayService handles API gateway operations
 type GatewayService struct {
-	accountRepo         AccountRepository
-	groupRepo           GroupRepository
-	usageLogRepo        UsageLogRepository
-	userRepo            UserRepository
-	userSubRepo         UserSubscriptionRepository
-	cache               GatewayCache
-	cfg                 *config.Config
-	schedulerSnapshot   *SchedulerSnapshotService
-	billingService      *BillingService
-	rateLimitService    *RateLimitService
-	billingCacheService *BillingCacheService
-	identityService     *IdentityService
-	httpUpstream        HTTPUpstream
-	deferredService     *DeferredService
-	concurrencyService  *ConcurrencyService
+	accountRepo          AccountRepository
+	groupRepo            GroupRepository
+	usageLogRepo         UsageLogRepository
+	userRepo             UserRepository
+	userSubRepo          UserSubscriptionRepository
+	cache                GatewayCache
+	cfg                  *config.Config
+	schedulerSnapshot    *SchedulerSnapshotService
+	billingService       *BillingService
+	rateLimitService     *RateLimitService
+	billingCacheService  *BillingCacheService
+	identityService      *IdentityService
+	httpUpstream         HTTPUpstream
+	deferredService      *DeferredService
+	concurrencyService   *ConcurrencyService
+	claudeTokenProvider  *ClaudeTokenProvider
 }
 
 // NewGatewayService creates a new GatewayService
@@ -178,23 +179,25 @@ func NewGatewayService(
 	identityService *IdentityService,
 	httpUpstream HTTPUpstream,
 	deferredService *DeferredService,
+	claudeTokenProvider *ClaudeTokenProvider,
 ) *GatewayService {
 	return &GatewayService{
-		accountRepo:         accountRepo,
-		groupRepo:           groupRepo,
-		usageLogRepo:        usageLogRepo,
-		userRepo:            userRepo,
-		userSubRepo:         userSubRepo,
-		cache:               cache,
-		cfg:                 cfg,
-		schedulerSnapshot:   schedulerSnapshot,
-		concurrencyService:  concurrencyService,
-		billingService:      billingService,
-		rateLimitService:    rateLimitService,
-		billingCacheService: billingCacheService,
-		identityService:     identityService,
-		httpUpstream:        httpUpstream,
-		deferredService:     deferredService,
+		accountRepo:          accountRepo,
+		groupRepo:            groupRepo,
+		usageLogRepo:         usageLogRepo,
+		userRepo:             userRepo,
+		userSubRepo:          userSubRepo,
+		cache:                cache,
+		cfg:                  cfg,
+		schedulerSnapshot:    schedulerSnapshot,
+		concurrencyService:   concurrencyService,
+		billingService:       billingService,
+		rateLimitService:     rateLimitService,
+		billingCacheService:  billingCacheService,
+		identityService:      identityService,
+		httpUpstream:         httpUpstream,
+		deferredService:      deferredService,
+		claudeTokenProvider:  claudeTokenProvider,
 	}
 }
 
@@ -1079,6 +1082,16 @@ func (s *GatewayService) GetAccessToken(ctx context.Context, account *Account) (
 }
 
 func (s *GatewayService) getOAuthToken(ctx context.Context, account *Account) (string, string, error) {
+	// 对于 Anthropic OAuth 账号，使用 ClaudeTokenProvider 获取缓存的 token
+	if account.Platform == PlatformAnthropic && account.Type == AccountTypeOAuth && s.claudeTokenProvider != nil {
+		accessToken, err := s.claudeTokenProvider.GetAccessToken(ctx, account)
+		if err != nil {
+			return "", "", err
+		}
+		return accessToken, "oauth", nil
+	}
+
+	// 其他情况（Gemini 有自己的 TokenProvider，setup-token 类型等）直接从账号读取
 	accessToken := account.GetCredential("access_token")
 	if accessToken == "" {
 		return "", "", errors.New("access_token not found in credentials")

backend/internal/service/openai_gateway_service.go

@@ -80,19 +80,20 @@ type OpenAIForwardResult struct {
 
 // OpenAIGatewayService handles OpenAI API gateway operations
 type OpenAIGatewayService struct {
-	accountRepo         AccountRepository
-	usageLogRepo        UsageLogRepository
-	userRepo            UserRepository
-	userSubRepo         UserSubscriptionRepository
-	cache               GatewayCache
-	cfg                 *config.Config
-	schedulerSnapshot   *SchedulerSnapshotService
-	concurrencyService  *ConcurrencyService
-	billingService      *BillingService
-	rateLimitService    *RateLimitService
-	billingCacheService *BillingCacheService
-	httpUpstream        HTTPUpstream
-	deferredService     *DeferredService
+	accountRepo          AccountRepository
+	usageLogRepo         UsageLogRepository
+	userRepo             UserRepository
+	userSubRepo          UserSubscriptionRepository
+	cache                GatewayCache
+	cfg                  *config.Config
+	schedulerSnapshot    *SchedulerSnapshotService
+	concurrencyService   *ConcurrencyService
+	billingService       *BillingService
+	rateLimitService     *RateLimitService
+	billingCacheService  *BillingCacheService
+	httpUpstream         HTTPUpstream
+	deferredService      *DeferredService
+	openAITokenProvider  *OpenAITokenProvider
 }
 
 // NewOpenAIGatewayService creates a new OpenAIGatewayService
@@ -110,21 +111,23 @@ func NewOpenAIGatewayService(
 	billingCacheService *BillingCacheService,
 	httpUpstream HTTPUpstream,
 	deferredService *DeferredService,
+	openAITokenProvider *OpenAITokenProvider,
 ) *OpenAIGatewayService {
 	return &OpenAIGatewayService{
-		accountRepo:         accountRepo,
-		usageLogRepo:        usageLogRepo,
-		userRepo:            userRepo,
-		userSubRepo:         userSubRepo,
-		cache:               cache,
-		cfg:                 cfg,
-		schedulerSnapshot:   schedulerSnapshot,
-		concurrencyService:  concurrencyService,
-		billingService:      billingService,
-		rateLimitService:    rateLimitService,
-		billingCacheService: billingCacheService,
-		httpUpstream:        httpUpstream,
-		deferredService:     deferredService,
+		accountRepo:          accountRepo,
+		usageLogRepo:         usageLogRepo,
+		userRepo:             userRepo,
+		userSubRepo:          userSubRepo,
+		cache:                cache,
+		cfg:                  cfg,
+		schedulerSnapshot:    schedulerSnapshot,
+		concurrencyService:   concurrencyService,
+		billingService:       billingService,
+		rateLimitService:     rateLimitService,
+		billingCacheService:  billingCacheService,
+		httpUpstream:         httpUpstream,
+		deferredService:      deferredService,
+		openAITokenProvider:  openAITokenProvider,
 	}
 }
 
@@ -503,6 +506,15 @@ func (s *OpenAIGatewayService) schedulingConfig() config.GatewaySchedulingConfig
 func (s *OpenAIGatewayService) GetAccessToken(ctx context.Context, account *Account) (string, string, error) {
 	switch account.Type {
 	case AccountTypeOAuth:
+		// 使用 TokenProvider 获取缓存的 token
+		if s.openAITokenProvider != nil {
+			accessToken, err := s.openAITokenProvider.GetAccessToken(ctx, account)
+			if err != nil {
+				return "", "", err
+			}
+			return accessToken, "oauth", nil
+		}
+		// 降级：TokenProvider 未配置时直接从账号读取
 		accessToken := account.GetOpenAIAccessToken()
 		if accessToken == "" {
 			return "", "", errors.New("access_token not found in credentials")

backend/internal/service/openai_token_provider.go

+package service
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"strings"
+	"time"
+)
+
+const (
+	openAITokenRefreshSkew = 3 * time.Minute
+	openAITokenCacheSkew   = 5 * time.Minute
+	openAILockWaitTime     = 200 * time.Millisecond
+)
+
+// OpenAITokenCache Token 缓存接口（复用 GeminiTokenCache 接口定义）
+type OpenAITokenCache = GeminiTokenCache
+
+// OpenAITokenProvider 管理 OpenAI OAuth 账户的 access_token
+type OpenAITokenProvider struct {
+	accountRepo        AccountRepository
+	tokenCache         OpenAITokenCache
+	openAIOAuthService *OpenAIOAuthService
+}
+
+func NewOpenAITokenProvider(
+	accountRepo AccountRepository,
+	tokenCache OpenAITokenCache,
+	openAIOAuthService *OpenAIOAuthService,
+) *OpenAITokenProvider {
+	return &OpenAITokenProvider{
+		accountRepo:        accountRepo,
+		tokenCache:         tokenCache,
+		openAIOAuthService: openAIOAuthService,
+	}
+}
+
+// GetAccessToken 获取有效的 access_token
+func (p *OpenAITokenProvider) GetAccessToken(ctx context.Context, account *Account) (string, error) {
+	if account == nil {
+		return "", errors.New("account is nil")
+	}
+	if account.Platform != PlatformOpenAI || account.Type != AccountTypeOAuth {
+		return "", errors.New("not an openai oauth account")
+	}
+
+	cacheKey := OpenAITokenCacheKey(account)
+
+	// 1. 先尝试缓存
+	if p.tokenCache != nil {
+		if token, err := p.tokenCache.GetAccessToken(ctx, cacheKey); err == nil && strings.TrimSpace(token) != "" {
+			slog.Debug("openai_token_cache_hit", "account_id", account.ID)
+			return token, nil
+		} else if err != nil {
+			slog.Warn("openai_token_cache_get_failed", "account_id", account.ID, "error", err)
+		}
+	}
+
+	slog.Debug("openai_token_cache_miss", "account_id", account.ID)
+
+	// 2. 如果即将过期则刷新
+	expiresAt := account.GetCredentialAsTime("expires_at")
+	needsRefresh := expiresAt == nil || time.Until(*expiresAt) <= openAITokenRefreshSkew
+	refreshFailed := false
+	if needsRefresh && p.tokenCache != nil {
+		locked, err := p.tokenCache.AcquireRefreshLock(ctx, cacheKey, 30*time.Second)
+		if err == nil && locked {
+			defer func() { _ = p.tokenCache.ReleaseRefreshLock(ctx, cacheKey) }()
+
+			// 拿到锁后再次检查缓存（另一个 worker 可能已刷新）
+			if token, err := p.tokenCache.GetAccessToken(ctx, cacheKey); err == nil && strings.TrimSpace(token) != "" {
+				return token, nil
+			}
+
+			// 从数据库获取最新账户信息
+			fresh, err := p.accountRepo.GetByID(ctx, account.ID)
+			if err == nil && fresh != nil {
+				account = fresh
+			}
+			expiresAt = account.GetCredentialAsTime("expires_at")
+			if expiresAt == nil || time.Until(*expiresAt) <= openAITokenRefreshSkew {
+				if p.openAIOAuthService == nil {
+					slog.Warn("openai_oauth_service_not_configured", "account_id", account.ID)
+					refreshFailed = true // 无法刷新，标记失败
+				} else {
+					tokenInfo, err := p.openAIOAuthService.RefreshAccountToken(ctx, account)
+					if err != nil {
+						// 刷新失败时记录警告，但不立即返回错误，尝试使用现有 token
+						slog.Warn("openai_token_refresh_failed", "account_id", account.ID, "error", err)
+						refreshFailed = true // 刷新失败，标记以使用短 TTL
+					} else {
+						newCredentials := p.openAIOAuthService.BuildAccountCredentials(tokenInfo)
+						for k, v := range account.Credentials {
+							if _, exists := newCredentials[k]; !exists {
+								newCredentials[k] = v
+							}
+						}
+						account.Credentials = newCredentials
+						if updateErr := p.accountRepo.Update(ctx, account); updateErr != nil {
+							slog.Error("openai_token_provider_update_failed", "account_id", account.ID, "error", updateErr)
+						}
+						expiresAt = account.GetCredentialAsTime("expires_at")
+					}
+				}
+			}
+		} else {
+			// 锁获取失败，等待 200ms 后重试读取缓存（改进：减少并发时的缓存未命中）
+			time.Sleep(openAILockWaitTime)
+			if token, err := p.tokenCache.GetAccessToken(ctx, cacheKey); err == nil && strings.TrimSpace(token) != "" {
+				slog.Debug("openai_token_cache_hit_after_wait", "account_id", account.ID)
+				return token, nil
+			}
+		}
+	}
+
+	accessToken := account.GetOpenAIAccessToken()
+	if strings.TrimSpace(accessToken) == "" {
+		return "", errors.New("access_token not found in credentials")
+	}
+
+	// 3. 存入缓存
+	if p.tokenCache != nil {
+		ttl := 30 * time.Minute
+		if refreshFailed {
+			// 刷新失败时使用短 TTL，避免失效 token 长时间缓存导致 401 抖动
+			ttl = time.Minute
+			slog.Debug("openai_token_cache_short_ttl", "account_id", account.ID, "reason", "refresh_failed")
+		} else if expiresAt != nil {
+			until := time.Until(*expiresAt)
+			switch {
+			case until > openAITokenCacheSkew:
+				ttl = until - openAITokenCacheSkew
+			case until > 0:
+				ttl = until
+			default:
+				ttl = time.Minute
+			}
+		}
+		if err := p.tokenCache.SetAccessToken(ctx, cacheKey, accessToken, ttl); err != nil {
+			slog.Warn("openai_token_cache_set_failed", "account_id", account.ID, "error", err)
+		}
+	}
+
+	return accessToken, nil
+}

backend/internal/service/ratelimit_service.go

@@ -85,8 +85,8 @@ func (s *RateLimitService) HandleUpstreamError(ctx context.Context, account *Acc
 
 	switch statusCode {
 	case 401:
-		if account.Type == AccountTypeOAuth &&
-			(account.Platform == PlatformAntigravity || account.Platform == PlatformGemini) {
+		// 对所有 OAuth 账号在 401 错误时调用缓存失效
+		if account.Type == AccountTypeOAuth {
 			if s.tokenCacheInvalidator != nil {
 				if err := s.tokenCacheInvalidator.InvalidateToken(ctx, account); err != nil {
 					slog.Warn("oauth_401_invalidate_cache_failed", "account_id", account.ID, "error", err)

backend/internal/service/token_cache_invalidator.go

@@ -7,29 +7,35 @@ type TokenCacheInvalidator interface {
 }
 
 type CompositeTokenCacheInvalidator struct {
-	geminiCache GeminiTokenCache
+	cache GeminiTokenCache // 统一使用一个缓存接口，通过缓存键前缀区分平台
 }
 
-func NewCompositeTokenCacheInvalidator(geminiCache GeminiTokenCache) *CompositeTokenCacheInvalidator {
+func NewCompositeTokenCacheInvalidator(cache GeminiTokenCache) *CompositeTokenCacheInvalidator {
 	return &CompositeTokenCacheInvalidator{
-		geminiCache: geminiCache,
+		cache: cache,
 	}
 }
 
 func (c *CompositeTokenCacheInvalidator) InvalidateToken(ctx context.Context, account *Account) error {
-	if c == nil || c.geminiCache == nil || account == nil {
+	if c == nil || c.cache == nil || account == nil {
 		return nil
 	}
 	if account.Type != AccountTypeOAuth {
 		return nil
 	}
 
+	var cacheKey string
 	switch account.Platform {
 	case PlatformGemini:
-		return c.geminiCache.DeleteAccessToken(ctx, GeminiTokenCacheKey(account))
+		cacheKey = GeminiTokenCacheKey(account)
 	case PlatformAntigravity:
-		return c.geminiCache.DeleteAccessToken(ctx, AntigravityTokenCacheKey(account))
+		cacheKey = AntigravityTokenCacheKey(account)
+	case PlatformOpenAI:
+		cacheKey = OpenAITokenCacheKey(account)
+	case PlatformAnthropic:
+		cacheKey = ClaudeTokenCacheKey(account)
 	default:
 		return nil
 	}
+	return c.cache.DeleteAccessToken(ctx, cacheKey)
 }

backend/internal/service/token_cache_invalidator_test.go

@@ -4,6 +4,7 @@ package service
 
 import (
 	"context"
+	"errors"
 	"testing"
 	"time"
 
@@ -70,13 +71,99 @@ func TestCompositeTokenCacheInvalidator_Antigravity(t *testing.T) {
 	require.Equal(t, []string{"ag:ag-project"}, cache.deletedKeys)
 }
 
+func TestCompositeTokenCacheInvalidator_OpenAI(t *testing.T) {
+	cache := &geminiTokenCacheStub{}
+	invalidator := NewCompositeTokenCacheInvalidator(cache)
+	account := &Account{
+		ID:       500,
+		Platform: PlatformOpenAI,
+		Type:     AccountTypeOAuth,
+		Credentials: map[string]any{
+			"access_token": "openai-token",
+		},
+	}
+
+	err := invalidator.InvalidateToken(context.Background(), account)
+	require.NoError(t, err)
+	require.Equal(t, []string{"openai:account:500"}, cache.deletedKeys)
+}
+
+func TestCompositeTokenCacheInvalidator_Claude(t *testing.T) {
+	cache := &geminiTokenCacheStub{}
+	invalidator := NewCompositeTokenCacheInvalidator(cache)
+	account := &Account{
+		ID:       600,
+		Platform: PlatformAnthropic,
+		Type:     AccountTypeOAuth,
+		Credentials: map[string]any{
+			"access_token": "claude-token",
+		},
+	}
+
+	err := invalidator.InvalidateToken(context.Background(), account)
+	require.NoError(t, err)
+	require.Equal(t, []string{"claude:account:600"}, cache.deletedKeys)
+}
+
 func TestCompositeTokenCacheInvalidator_SkipNonOAuth(t *testing.T) {
 	cache := &geminiTokenCacheStub{}
 	invalidator := NewCompositeTokenCacheInvalidator(cache)
+
+	tests := []struct {
+		name     string
+		account  *Account
+	}{
+		{
+			name: "gemini_api_key",
+			account: &Account{
+				ID:       1,
+				Platform: PlatformGemini,
+				Type:     AccountTypeAPIKey,
+			},
+		},
+		{
+			name: "openai_api_key",
+			account: &Account{
+				ID:       2,
+				Platform: PlatformOpenAI,
+				Type:     AccountTypeAPIKey,
+			},
+		},
+		{
+			name: "claude_api_key",
+			account: &Account{
+				ID:       3,
+				Platform: PlatformAnthropic,
+				Type:     AccountTypeAPIKey,
+			},
+		},
+		{
+			name: "claude_setup_token",
+			account: &Account{
+				ID:       4,
+				Platform: PlatformAnthropic,
+				Type:     AccountTypeSetupToken,
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cache.deletedKeys = nil
+			err := invalidator.InvalidateToken(context.Background(), tt.account)
+			require.NoError(t, err)
+			require.Empty(t, cache.deletedKeys)
+		})
+	}
+}
+
+func TestCompositeTokenCacheInvalidator_SkipUnsupportedPlatform(t *testing.T) {
+	cache := &geminiTokenCacheStub{}
+	invalidator := NewCompositeTokenCacheInvalidator(cache)
 	account := &Account{
-		ID:       1,
-		Platform: PlatformGemini,
-		Type:     AccountTypeAPIKey,
+		ID:       100,
+		Platform: "unknown-platform",
+		Type:     AccountTypeOAuth,
 	}
 
 	err := invalidator.InvalidateToken(context.Background(), account)
@@ -95,3 +182,87 @@ func TestCompositeTokenCacheInvalidator_NilCache(t *testing.T) {
 	err := invalidator.InvalidateToken(context.Background(), account)
 	require.NoError(t, err)
 }
+
+func TestCompositeTokenCacheInvalidator_NilAccount(t *testing.T) {
+	cache := &geminiTokenCacheStub{}
+	invalidator := NewCompositeTokenCacheInvalidator(cache)
+
+	err := invalidator.InvalidateToken(context.Background(), nil)
+	require.NoError(t, err)
+	require.Empty(t, cache.deletedKeys)
+}
+
+func TestCompositeTokenCacheInvalidator_NilInvalidator(t *testing.T) {
+	var invalidator *CompositeTokenCacheInvalidator
+	account := &Account{
+		ID:       5,
+		Platform: PlatformGemini,
+		Type:     AccountTypeOAuth,
+	}
+
+	err := invalidator.InvalidateToken(context.Background(), account)
+	require.NoError(t, err)
+}
+
+func TestCompositeTokenCacheInvalidator_DeleteError(t *testing.T) {
+	expectedErr := errors.New("redis connection failed")
+	cache := &geminiTokenCacheStub{deleteErr: expectedErr}
+	invalidator := NewCompositeTokenCacheInvalidator(cache)
+
+	tests := []struct {
+		name     string
+		account  *Account
+	}{
+		{
+			name: "openai_delete_error",
+			account: &Account{
+				ID:       700,
+				Platform: PlatformOpenAI,
+				Type:     AccountTypeOAuth,
+			},
+		},
+		{
+			name: "claude_delete_error",
+			account: &Account{
+				ID:       800,
+				Platform: PlatformAnthropic,
+				Type:     AccountTypeOAuth,
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := invalidator.InvalidateToken(context.Background(), tt.account)
+			require.Error(t, err)
+			require.Equal(t, expectedErr, err)
+		})
+	}
+}
+
+func TestCompositeTokenCacheInvalidator_AllPlatformsIntegration(t *testing.T) {
+	// 测试所有平台的缓存键生成和删除
+	cache := &geminiTokenCacheStub{}
+	invalidator := NewCompositeTokenCacheInvalidator(cache)
+
+	accounts := []*Account{
+		{ID: 1, Platform: PlatformGemini, Type: AccountTypeOAuth, Credentials: map[string]any{"project_id": "gemini-proj"}},
+		{ID: 2, Platform: PlatformAntigravity, Type: AccountTypeOAuth, Credentials: map[string]any{"project_id": "ag-proj"}},
+		{ID: 3, Platform: PlatformOpenAI, Type: AccountTypeOAuth},
+		{ID: 4, Platform: PlatformAnthropic, Type: AccountTypeOAuth},
+	}
+
+	expectedKeys := []string{
+		"gemini-proj",
+		"ag:ag-proj",
+		"openai:account:3",
+		"claude:account:4",
+	}
+
+	for _, acc := range accounts {
+		err := invalidator.InvalidateToken(context.Background(), acc)
+		require.NoError(t, err)
+	}
+
+	require.Equal(t, expectedKeys, cache.deletedKeys)
+}

backend/internal/service/token_cache_key.go

+package service
+
+import "strconv"
+
+// OpenAITokenCacheKey 生成 OpenAI OAuth 账号的缓存键
+// 格式: "openai:account:{account_id}"
+func OpenAITokenCacheKey(account *Account) string {
+	return "openai:account:" + strconv.FormatInt(account.ID, 10)
+}
+
+// ClaudeTokenCacheKey 生成 Claude (Anthropic) OAuth 账号的缓存键
+// 格式: "claude:account:{account_id}"
+func ClaudeTokenCacheKey(account *Account) string {
+	return "claude:account:" + strconv.FormatInt(account.ID, 10)
+}

backend/internal/service/token_cache_key_test.go

@@ -151,3 +151,109 @@ func TestAntigravityTokenCacheKey(t *testing.T) {
 		})
 	}
 }
+
+func TestOpenAITokenCacheKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		account  *Account
+		expected string
+	}{
+		{
+			name: "basic_account",
+			account: &Account{
+				ID: 300,
+			},
+			expected: "openai:account:300",
+		},
+		{
+			name: "account_with_credentials",
+			account: &Account{
+				ID: 301,
+				Credentials: map[string]any{
+					"access_token": "test-token",
+				},
+			},
+			expected: "openai:account:301",
+		},
+		{
+			name: "account_id_zero",
+			account: &Account{
+				ID: 0,
+			},
+			expected: "openai:account:0",
+		},
+		{
+			name: "large_account_id",
+			account: &Account{
+				ID: 9999999999,
+			},
+			expected: "openai:account:9999999999",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := OpenAITokenCacheKey(tt.account)
+			require.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestClaudeTokenCacheKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		account  *Account
+		expected string
+	}{
+		{
+			name: "basic_account",
+			account: &Account{
+				ID: 400,
+			},
+			expected: "claude:account:400",
+		},
+		{
+			name: "account_with_credentials",
+			account: &Account{
+				ID: 401,
+				Credentials: map[string]any{
+					"access_token": "claude-token",
+				},
+			},
+			expected: "claude:account:401",
+		},
+		{
+			name: "account_id_zero",
+			account: &Account{
+				ID: 0,
+			},
+			expected: "claude:account:0",
+		},
+		{
+			name: "large_account_id",
+			account: &Account{
+				ID: 9999999999,
+			},
+			expected: "claude:account:9999999999",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := ClaudeTokenCacheKey(tt.account)
+			require.Equal(t, tt.expected, result)
+		})
+	}
+}
+
+func TestCacheKeyUniqueness(t *testing.T) {
+	// 确保不同平台的缓存键不会冲突
+	account := &Account{ID: 123}
+
+	openaiKey := OpenAITokenCacheKey(account)
+	claudeKey := ClaudeTokenCacheKey(account)
+
+	require.NotEqual(t, openaiKey, claudeKey, "OpenAI and Claude cache keys should be different")
+	require.Contains(t, openaiKey, "openai:")
+	require.Contains(t, claudeKey, "claude:")
+}

backend/internal/service/token_refresh_service.go

@@ -172,8 +172,8 @@ func (s *TokenRefreshService) refreshWithRetry(ctx context.Context, account *Acc
 			if err := s.accountRepo.Update(ctx, account); err != nil {
 				return fmt.Errorf("failed to save credentials: %w", err)
 			}
-			if s.cacheInvalidator != nil && account.Type == AccountTypeOAuth &&
-				(account.Platform == PlatformGemini || account.Platform == PlatformAntigravity) {
+			// 对所有 OAuth 账号调用缓存失效（InvalidateToken 内部根据平台判断是否需要处理）
+			if s.cacheInvalidator != nil && account.Type == AccountTypeOAuth {
 				if err := s.cacheInvalidator.InvalidateToken(ctx, account); err != nil {
 					log.Printf("[TokenRefresh] Failed to invalidate token cache for account %d: %v", account.ID, err)
 				} else {

backend/internal/service/token_refresh_service_test.go

@@ -197,7 +197,7 @@ func TestTokenRefreshService_RefreshWithRetry_NonOAuthAccount(t *testing.T) {
 	require.Equal(t, 0, invalidator.calls) // 非 OAuth 不触发缓存失效
 }
 
-// TestTokenRefreshService_RefreshWithRetry_OtherPlatformOAuth 测试其他平台的 OAuth 账号不触发缓存失效
+// TestTokenRefreshService_RefreshWithRetry_OtherPlatformOAuth 测试所有 OAuth 平台都触发缓存失效
 func TestTokenRefreshService_RefreshWithRetry_OtherPlatformOAuth(t *testing.T) {
 	repo := &tokenRefreshAccountRepo{}
 	invalidator := &tokenCacheInvalidatorStub{}
@@ -210,7 +210,7 @@ func TestTokenRefreshService_RefreshWithRetry_OtherPlatformOAuth(t *testing.T) {
 	service := NewTokenRefreshService(repo, nil, nil, nil, nil, invalidator, cfg)
 	account := &Account{
 		ID:       10,
-		Platform: PlatformOpenAI, // 其他平台
+		Platform: PlatformOpenAI, // OpenAI OAuth 账户
 		Type:     AccountTypeOAuth,
 	}
 	refresher := &tokenRefresherStub{
@@ -222,7 +222,7 @@ func TestTokenRefreshService_RefreshWithRetry_OtherPlatformOAuth(t *testing.T) {
 	err := service.refreshWithRetry(context.Background(), account, refresher)
 	require.NoError(t, err)
 	require.Equal(t, 1, repo.updateCalls)
-	require.Equal(t, 0, invalidator.calls) // 其他平台不触发缓存失效
+	require.Equal(t, 1, invalidator.calls) // 所有 OAuth 账户刷新后触发缓存失效
 }
 
 // TestTokenRefreshService_RefreshWithRetry_UpdateFailed 测试更新失败的情况

backend/internal/service/wire.go

@@ -214,10 +214,13 @@ var ProviderSet = wire.NewSet(
 	NewGeminiOAuthService,
 	NewGeminiQuotaService,
 	NewCompositeTokenCacheInvalidator,
+	wire.Bind(new(TokenCacheInvalidator), new(*CompositeTokenCacheInvalidator)),
 	NewAntigravityOAuthService,
 	NewGeminiTokenProvider,
 	NewGeminiMessagesCompatService,
 	NewAntigravityTokenProvider,
+	NewOpenAITokenProvider,
+	NewClaudeTokenProvider,
 	NewAntigravityGatewayService,
 	ProvideRateLimitService,
 	NewAccountUsageService,