Revert "fix(risk-control): 风控后端异常时阻断提示词请求"

backend/internal/service/content_moderation.go

@@ -831,14 +831,7 @@ func (s *ContentModerationService) Check(ctx context.Context, input ContentModer
 			"endpoint", input.Endpoint,
 			"protocol", input.Protocol,
 			"error", err)
-		return &ContentModerationDecision{
-			Allowed:    false,
-			Blocked:    true,
-			Flagged:    false,
-			Message:    "风控系统暂时不可用，请稍后重试",
-			StatusCode: http.StatusInternalServerError,
-			Action:     ContentModerationActionError,
-		}, nil
+		return allow, nil
 	}
 	if !runtimeSnapshot.riskControlEnabled {
 		slog.Info("content_moderation.skip_feature_disabled",

backend/internal/service/content_moderation_test.go

@@ -19,7 +19,6 @@ import (
 
 type contentModerationTestSettingRepo struct {
 	values map[string]string
-	err    error
 }
 
 func (r *contentModerationTestSettingRepo) Get(ctx context.Context, key string) (*Setting, error) {
@@ -45,9 +44,6 @@ func (r *contentModerationTestSettingRepo) Set(ctx context.Context, key, value s
 }
 
 func (r *contentModerationTestSettingRepo) GetMultiple(ctx context.Context, keys []string) (map[string]string, error) {
-	if r.err != nil {
-		return nil, r.err
-	}
 	out := map[string]string{}
 	for _, key := range keys {
 		if value, ok := r.values[key]; ok {
@@ -57,23 +53,6 @@ func (r *contentModerationTestSettingRepo) GetMultiple(ctx context.Context, keys
 	return out, nil
 }
 
-func TestContentModerationCheck_LoadRuntimeSnapshotFailureBlocks(t *testing.T) {
-	svc := &ContentModerationService{
-		settingRepo: &contentModerationTestSettingRepo{err: fmt.Errorf("settings unavailable")},
-		repo:        &contentModerationTestRepo{},
-	}
-
-	decision, err := svc.Check(context.Background(), ContentModerationCheckInput{UserID: 1})
-
-	require.NoError(t, err)
-	require.False(t, decision.Allowed)
-	require.True(t, decision.Blocked)
-	require.False(t, decision.Flagged)
-	require.Equal(t, ContentModerationActionError, decision.Action)
-	require.Equal(t, "风控系统暂时不可用，请稍后重试", decision.Message)
-	require.Equal(t, http.StatusInternalServerError, decision.StatusCode)
-}
-
 func (r *contentModerationTestSettingRepo) SetMultiple(ctx context.Context, settings map[string]string) error {
 	if r.values == nil {
 		r.values = map[string]string{}