fix(account): preserve runtime state during credentials-only updates

backend/internal/repository/account_repo.go

@@ -404,6 +404,17 @@ func (r *accountRepository) Update(ctx context.Context, account *service.Account
 	return nil
 }
 
+func (r *accountRepository) UpdateCredentials(ctx context.Context, id int64, credentials map[string]any) error {
+	_, err := r.client.Account.UpdateOneID(id).
+		SetCredentials(normalizeJSONMap(credentials)).
+		Save(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrAccountNotFound, nil)
+	}
+	r.syncSchedulerAccountSnapshot(ctx, id)
+	return nil
+}
+
 func (r *accountRepository) Delete(ctx context.Context, id int64) error {
 	groupIDs, err := r.loadAccountGroupIDs(ctx, id)
 	if err != nil {

backend/internal/service/account_credentials_persistence.go

@@ -0,0 +1,30 @@
+package service
+
+import "context"
+
+type accountCredentialsUpdater interface {
+	UpdateCredentials(ctx context.Context, id int64, credentials map[string]any) error
+}
+
+func persistAccountCredentials(ctx context.Context, repo AccountRepository, account *Account, credentials map[string]any) error {
+	if repo == nil || account == nil {
+		return nil
+	}
+
+	account.Credentials = cloneCredentials(credentials)
+	if updater, ok := any(repo).(accountCredentialsUpdater); ok {
+		return updater.UpdateCredentials(ctx, account.ID, account.Credentials)
+	}
+	return repo.Update(ctx, account)
+}
+
+func cloneCredentials(in map[string]any) map[string]any {
+	if in == nil {
+		return map[string]any{}
+	}
+	out := make(map[string]any, len(in))
+	for k, v := range in {
+		out[k] = v
+	}
+	return out
+}

backend/internal/service/antigravity_token_provider.go

@@ -138,7 +138,7 @@ func (p *AntigravityTokenProvider) GetAccessToken(ctx context.Context, account *
 			p.markBackfillAttempted(account.ID)
 			if projectID, err := p.antigravityOAuthService.FillProjectID(ctx, account, accessToken); err == nil && projectID != "" {
 				account.Credentials["project_id"] = projectID
-				if updateErr := p.accountRepo.Update(ctx, account); updateErr != nil {
+				if updateErr := persistAccountCredentials(ctx, p.accountRepo, account, account.Credentials); updateErr != nil {
 					slog.Warn("antigravity_project_id_backfill_persist_failed",
 						"account_id", account.ID,
 						"error", updateErr,

backend/internal/service/crs_sync_service.go

@@ -367,8 +367,7 @@ func (s *CRSSyncService) SyncFromCRS(ctx context.Context, input SyncFromCRSInput
 			// 🔄 Refresh OAuth token after creation
 			if targetType == AccountTypeOAuth {
 				if refreshedCreds := s.refreshOAuthToken(ctx, account); refreshedCreds != nil {
-					account.Credentials = refreshedCreds
-					_ = s.accountRepo.Update(ctx, account)
+					_ = persistAccountCredentials(ctx, s.accountRepo, account, refreshedCreds)
 				}
 			}
 			item.Action = "created"
@@ -402,8 +401,7 @@ func (s *CRSSyncService) SyncFromCRS(ctx context.Context, input SyncFromCRSInput
 		// 🔄 Refresh OAuth token after update
 		if targetType == AccountTypeOAuth {
 			if refreshedCreds := s.refreshOAuthToken(ctx, existing); refreshedCreds != nil {
-				existing.Credentials = refreshedCreds
-				_ = s.accountRepo.Update(ctx, existing)
+				_ = persistAccountCredentials(ctx, s.accountRepo, existing, refreshedCreds)
 			}
 		}
 
@@ -620,8 +618,7 @@ func (s *CRSSyncService) SyncFromCRS(ctx context.Context, input SyncFromCRSInput
 			}
 			// 🔄 Refresh OAuth token after creation
 			if refreshedCreds := s.refreshOAuthToken(ctx, account); refreshedCreds != nil {
-				account.Credentials = refreshedCreds
-				_ = s.accountRepo.Update(ctx, account)
+				_ = persistAccountCredentials(ctx, s.accountRepo, account, refreshedCreds)
 			}
 			item.Action = "created"
 			result.Created++
@@ -652,8 +649,7 @@ func (s *CRSSyncService) SyncFromCRS(ctx context.Context, input SyncFromCRSInput
 
 		// 🔄 Refresh OAuth token after update
 		if refreshedCreds := s.refreshOAuthToken(ctx, existing); refreshedCreds != nil {
-			existing.Credentials = refreshedCreds
-			_ = s.accountRepo.Update(ctx, existing)
+			_ = persistAccountCredentials(ctx, s.accountRepo, existing, refreshedCreds)
 		}
 
 		item.Action = "updated"
@@ -862,8 +858,7 @@ func (s *CRSSyncService) SyncFromCRS(ctx context.Context, input SyncFromCRSInput
 				continue
 			}
 			if refreshedCreds := s.refreshOAuthToken(ctx, account); refreshedCreds != nil {
-				account.Credentials = refreshedCreds
-				_ = s.accountRepo.Update(ctx, account)
+				_ = persistAccountCredentials(ctx, s.accountRepo, account, refreshedCreds)
 			}
 			item.Action = "created"
 			result.Created++
@@ -893,8 +888,7 @@ func (s *CRSSyncService) SyncFromCRS(ctx context.Context, input SyncFromCRSInput
 		}
 
 		if refreshedCreds := s.refreshOAuthToken(ctx, existing); refreshedCreds != nil {
-			existing.Credentials = refreshedCreds
-			_ = s.accountRepo.Update(ctx, existing)
+			_ = persistAccountCredentials(ctx, s.accountRepo, existing, refreshedCreds)
 		}
 
 		item.Action = "updated"

backend/internal/service/gemini_token_provider.go

@@ -135,7 +135,7 @@ func (p *GeminiTokenProvider) GetAccessToken(ctx context.Context, account *Accou
 			if tierID != "" {
 				account.Credentials["tier_id"] = tierID
 			}
-			_ = p.accountRepo.Update(ctx, account)
+			_ = persistAccountCredentials(ctx, p.accountRepo, account, account.Credentials)
 		}
 	}
 

backend/internal/service/oauth_refresh_api.go

@@ -108,8 +108,7 @@ func (api *OAuthRefreshAPI) RefreshIfNeeded(
 	// 5. 设置版本号 + 更新 DB
 	if newCredentials != nil {
 		newCredentials["_token_version"] = time.Now().UnixMilli()
-		freshAccount.Credentials = newCredentials
-		if updateErr := api.accountRepo.Update(ctx, freshAccount); updateErr != nil {
+		if updateErr := persistAccountCredentials(ctx, api.accountRepo, freshAccount, newCredentials); updateErr != nil {
 			slog.Error("oauth_refresh_update_failed",
 				"account_id", freshAccount.ID,
 				"error", updateErr,

backend/internal/service/oauth_refresh_api_test.go

@@ -16,10 +16,11 @@ import (
 // refreshAPIAccountRepo implements AccountRepository for OAuthRefreshAPI tests.
 type refreshAPIAccountRepo struct {
 	mockAccountRepoForGemini
-	account   *Account   // returned by GetByID
-	getByIDErr error
-	updateErr  error
-	updateCalls int
+	account                *Account // returned by GetByID
+	getByIDErr             error
+	updateErr              error
+	updateCalls            int
+	updateCredentialsCalls int
 }
 
 func (r *refreshAPIAccountRepo) GetByID(_ context.Context, _ int64) (*Account, error) {
@@ -34,6 +35,19 @@ func (r *refreshAPIAccountRepo) Update(_ context.Context, _ *Account) error {
 	return r.updateErr
 }
 
+func (r *refreshAPIAccountRepo) UpdateCredentials(_ context.Context, id int64, credentials map[string]any) error {
+	r.updateCalls++
+	r.updateCredentialsCalls++
+	if r.updateErr != nil {
+		return r.updateErr
+	}
+	if r.account == nil || r.account.ID != id {
+		r.account = &Account{ID: id}
+	}
+	r.account.Credentials = cloneCredentials(credentials)
+	return nil
+}
+
 // refreshAPIExecutorStub implements OAuthRefreshExecutor for tests.
 type refreshAPIExecutorStub struct {
 	needsRefresh bool
@@ -106,10 +120,36 @@ func TestRefreshIfNeeded_Success(t *testing.T) {
 	require.Equal(t, "new-token", result.NewCredentials["access_token"])
 	require.NotNil(t, result.NewCredentials["_token_version"]) // version stamp set
 	require.Equal(t, 1, repo.updateCalls)                      // DB updated
-	require.Equal(t, 1, cache.releaseCalls)                    // lock released
+	require.Equal(t, 1, repo.updateCredentialsCalls)
+	require.Equal(t, 1, cache.releaseCalls) // lock released
 	require.Equal(t, 1, executor.refreshCalls)
 }
 
+func TestRefreshIfNeeded_UpdateCredentialsPreservesRateLimitState(t *testing.T) {
+	resetAt := time.Now().Add(45 * time.Minute)
+	account := &Account{
+		ID:               11,
+		Platform:         PlatformGemini,
+		Type:             AccountTypeOAuth,
+		RateLimitResetAt: &resetAt,
+	}
+	repo := &refreshAPIAccountRepo{account: account}
+	cache := &refreshAPICacheStub{lockResult: true}
+	executor := &refreshAPIExecutorStub{
+		needsRefresh: true,
+		credentials:  map[string]any{"access_token": "safe-token"},
+	}
+
+	api := NewOAuthRefreshAPI(repo, cache)
+	result, err := api.RefreshIfNeeded(context.Background(), account, executor, 3*time.Minute)
+
+	require.NoError(t, err)
+	require.True(t, result.Refreshed)
+	require.Equal(t, 1, repo.updateCredentialsCalls)
+	require.NotNil(t, repo.account.RateLimitResetAt)
+	require.WithinDuration(t, resetAt, *repo.account.RateLimitResetAt, time.Second)
+}
+
 func TestRefreshIfNeeded_LockHeld(t *testing.T) {
 	account := &Account{ID: 2, Platform: PlatformAnthropic}
 	repo := &refreshAPIAccountRepo{account: account}
@@ -193,7 +233,7 @@ func TestRefreshIfNeeded_RefreshError(t *testing.T) {
 	require.Error(t, err)
 	require.Nil(t, result)
 	require.Contains(t, err.Error(), "invalid_grant")
-	require.Equal(t, 0, repo.updateCalls) // no DB update on refresh error
+	require.Equal(t, 0, repo.updateCalls)   // no DB update on refresh error
 	require.Equal(t, 1, cache.releaseCalls) // lock still released via defer
 }
 
@@ -299,8 +339,8 @@ func TestMergeCredentials_NewOverridesOld(t *testing.T) {
 
 	result := MergeCredentials(old, new)
 
-	require.Equal(t, "new-token", result["access_token"])     // overridden
-	require.Equal(t, "old-refresh", result["refresh_token"])  // preserved
+	require.Equal(t, "new-token", result["access_token"])    // overridden
+	require.Equal(t, "old-refresh", result["refresh_token"]) // preserved
 }
 
 // ========== BuildClaudeAccountCredentials tests ==========

backend/internal/service/ratelimit_service.go

@@ -163,7 +163,7 @@ func (s *RateLimitService) HandleUpstreamError(ctx context.Context, account *Acc
 				account.Credentials = make(map[string]any)
 			}
 			account.Credentials["expires_at"] = time.Now().Format(time.RFC3339)
-			if err := s.accountRepo.Update(ctx, account); err != nil {
+			if err := persistAccountCredentials(ctx, s.accountRepo, account, account.Credentials); err != nil {
 				slog.Warn("oauth_401_force_refresh_update_failed", "account_id", account.ID, "error", err)
 			} else {
 				slog.Info("oauth_401_force_refresh_set", "account_id", account.ID, "platform", account.Platform)

backend/internal/service/ratelimit_service_401_test.go

@@ -15,9 +15,11 @@ import (
 
 type rateLimitAccountRepoStub struct {
 	mockAccountRepoForGemini
-	setErrorCalls int
-	tempCalls     int
-	lastErrorMsg  string
+	setErrorCalls          int
+	tempCalls              int
+	updateCredentialsCalls int
+	lastCredentials        map[string]any
+	lastErrorMsg           string
 }
 
 func (r *rateLimitAccountRepoStub) SetError(ctx context.Context, id int64, errorMsg string) error {
@@ -31,6 +33,12 @@ func (r *rateLimitAccountRepoStub) SetTempUnschedulable(ctx context.Context, id
 	return nil
 }
 
+func (r *rateLimitAccountRepoStub) UpdateCredentials(ctx context.Context, id int64, credentials map[string]any) error {
+	r.updateCredentialsCalls++
+	r.lastCredentials = cloneCredentials(credentials)
+	return nil
+}
+
 type tokenCacheInvalidatorRecorder struct {
 	accounts []*Account
 	err      error
@@ -110,6 +118,7 @@ func TestRateLimitService_HandleUpstreamError_OAuth401InvalidatorError(t *testin
 	require.True(t, shouldDisable)
 	require.Equal(t, 0, repo.setErrorCalls)
 	require.Equal(t, 1, repo.tempCalls)
+	require.Equal(t, 1, repo.updateCredentialsCalls)
 	require.Len(t, invalidator.accounts, 1)
 }
 
@@ -130,3 +139,22 @@ func TestRateLimitService_HandleUpstreamError_NonOAuth401(t *testing.T) {
 	require.Equal(t, 1, repo.setErrorCalls)
 	require.Empty(t, invalidator.accounts)
 }
+
+func TestRateLimitService_HandleUpstreamError_OAuth401UsesCredentialsUpdater(t *testing.T) {
+	repo := &rateLimitAccountRepoStub{}
+	service := NewRateLimitService(repo, nil, &config.Config{}, nil, nil)
+	account := &Account{
+		ID:       103,
+		Platform: PlatformOpenAI,
+		Type:     AccountTypeOAuth,
+		Credentials: map[string]any{
+			"access_token": "token",
+		},
+	}
+
+	shouldDisable := service.HandleUpstreamError(context.Background(), account, 401, http.Header{}, []byte("unauthorized"))
+
+	require.True(t, shouldDisable)
+	require.Equal(t, 1, repo.updateCredentialsCalls)
+	require.NotEmpty(t, repo.lastCredentials["expires_at"])
+}

backend/internal/service/sora_sdk_client.go

@@ -947,7 +947,7 @@ func (c *SoraSDKClient) applyRecoveredToken(ctx context.Context, account *Accoun
 	}
 
 	if c.accountRepo != nil {
-		if err := c.accountRepo.Update(ctx, account); err != nil && c.debugEnabled() {
+		if err := persistAccountCredentials(ctx, c.accountRepo, account, account.Credentials); err != nil && c.debugEnabled() {
 			c.debugLogf("persist_recovered_token_failed account_id=%d err=%s", account.ID, logredact.RedactText(err.Error()))
 		}
 	}

backend/internal/service/token_refresh_service.go

@@ -280,8 +280,7 @@ func (s *TokenRefreshService) refreshWithRetry(ctx context.Context, account *Acc
 			newCredentials, err = refresher.Refresh(ctx, account)
 			if newCredentials != nil {
 				newCredentials["_token_version"] = time.Now().UnixMilli()
-				account.Credentials = newCredentials
-				if saveErr := s.accountRepo.Update(ctx, account); saveErr != nil {
+				if saveErr := persistAccountCredentials(ctx, s.accountRepo, account, newCredentials); saveErr != nil {
 					return fmt.Errorf("failed to save credentials: %w", saveErr)
 				}
 			}

backend/internal/service/token_refresh_service_test.go

@@ -14,19 +14,40 @@ import (
 
 type tokenRefreshAccountRepo struct {
 	mockAccountRepoForGemini
-	updateCalls    int
-	setErrorCalls  int
-	clearTempCalls int
-	lastAccount    *Account
-	updateErr      error
+	updateCalls            int
+	fullUpdateCalls        int
+	updateCredentialsCalls int
+	setErrorCalls          int
+	clearTempCalls         int
+	lastAccount            *Account
+	updateErr              error
 }
 
 func (r *tokenRefreshAccountRepo) Update(ctx context.Context, account *Account) error {
 	r.updateCalls++
+	r.fullUpdateCalls++
 	r.lastAccount = account
 	return r.updateErr
 }
 
+func (r *tokenRefreshAccountRepo) UpdateCredentials(ctx context.Context, id int64, credentials map[string]any) error {
+	r.updateCalls++
+	r.updateCredentialsCalls++
+	if r.updateErr != nil {
+		return r.updateErr
+	}
+	cloned := cloneCredentials(credentials)
+	if r.accountsByID != nil {
+		if acc, ok := r.accountsByID[id]; ok && acc != nil {
+			acc.Credentials = cloned
+			r.lastAccount = acc
+			return nil
+		}
+	}
+	r.lastAccount = &Account{ID: id, Credentials: cloned}
+	return nil
+}
+
 func (r *tokenRefreshAccountRepo) SetError(ctx context.Context, id int64, errorMsg string) error {
 	r.setErrorCalls++
 	return nil
@@ -112,6 +133,8 @@ func TestTokenRefreshService_RefreshWithRetry_InvalidatesCache(t *testing.T) {
 	err := service.refreshWithRetry(context.Background(), account, refresher, refresher, time.Hour)
 	require.NoError(t, err)
 	require.Equal(t, 1, repo.updateCalls)
+	require.Equal(t, 1, repo.updateCredentialsCalls)
+	require.Equal(t, 0, repo.fullUpdateCalls)
 	require.Equal(t, 1, invalidator.calls)
 	require.Equal(t, "new-token", account.GetCredential("access_token"))
 }
@@ -249,9 +272,43 @@ func TestTokenRefreshService_RefreshWithRetry_OtherPlatformOAuth(t *testing.T) {
 	err := service.refreshWithRetry(context.Background(), account, refresher, refresher, time.Hour)
 	require.NoError(t, err)
 	require.Equal(t, 1, repo.updateCalls)
+	require.Equal(t, 1, repo.updateCredentialsCalls)
 	require.Equal(t, 1, invalidator.calls) // 所有 OAuth 账户刷新后触发缓存失效
 }
 
+func TestTokenRefreshService_RefreshWithRetry_UsesCredentialsUpdater(t *testing.T) {
+	repo := &tokenRefreshAccountRepo{}
+	cfg := &config.Config{
+		TokenRefresh: config.TokenRefreshConfig{
+			MaxRetries:          1,
+			RetryBackoffSeconds: 0,
+		},
+	}
+	service := NewTokenRefreshService(repo, nil, nil, nil, nil, nil, nil, cfg, nil)
+	resetAt := time.Now().Add(30 * time.Minute)
+	account := &Account{
+		ID:               17,
+		Platform:         PlatformOpenAI,
+		Type:             AccountTypeOAuth,
+		RateLimitResetAt: &resetAt,
+		Credentials: map[string]any{
+			"access_token": "old-token",
+		},
+	}
+	refresher := &tokenRefresherStub{
+		credentials: map[string]any{
+			"access_token": "new-token",
+		},
+	}
+
+	err := service.refreshWithRetry(context.Background(), account, refresher, refresher, time.Hour)
+	require.NoError(t, err)
+	require.Equal(t, 1, repo.updateCredentialsCalls)
+	require.Equal(t, 0, repo.fullUpdateCalls)
+	require.NotNil(t, account.RateLimitResetAt)
+	require.WithinDuration(t, resetAt, *account.RateLimitResetAt, time.Second)
+}
+
 // TestTokenRefreshService_RefreshWithRetry_UpdateFailed 测试更新失败的情况
 func TestTokenRefreshService_RefreshWithRetry_UpdateFailed(t *testing.T) {
 	repo := &tokenRefreshAccountRepo{updateErr: errors.New("update failed")}
@@ -390,7 +447,7 @@ func TestTokenRefreshService_RefreshWithRetry_ClearsTempUnschedulable(t *testing
 	err := service.refreshWithRetry(context.Background(), account, refresher, refresher, time.Hour)
 	require.NoError(t, err)
 	require.Equal(t, 1, repo.updateCalls)
-	require.Equal(t, 1, repo.clearTempCalls)  // DB 清除
+	require.Equal(t, 1, repo.clearTempCalls)   // DB 清除
 	require.Equal(t, 1, tempCache.deleteCalls) // Redis 缓存也应清除
 }