fix: golangci-lint test assertion and gofmt

backend/internal/handler/admin/channel_handler_test.go

@@ -493,7 +493,7 @@ func TestValidatePricingBillingMode(t *testing.T) {
 			err := validatePricingBillingMode(tt.pricing)
 			if tt.wantErr {
 				require.Error(t, err)
-				require.Contains(t, err.Error(), "Per-request price or intervals required")
+				require.Contains(t, err.Error(), "per-request price or intervals required")
 			} else {
 				require.NoError(t, err)
 			}

backend/internal/service/openai_gateway_service.go

@@ -4245,22 +4245,22 @@ func (s *OpenAIGatewayService) RecordUsage(ctx context.Context, input *OpenAIRec
 	}
 
 	usageLog := &UsageLog{
-		UserID:                user.ID,
-		APIKeyID:              apiKey.ID,
-		AccountID:             account.ID,
-		RequestID:             requestID,
-		Model:                 result.Model,
-		RequestedModel:        requestedModel,
-		UpstreamModel:         optionalNonEqualStringPtr(result.UpstreamModel, result.Model),
-		ServiceTier:           result.ServiceTier,
-		ReasoningEffort:       result.ReasoningEffort,
-		InboundEndpoint:       optionalTrimmedStringPtr(input.InboundEndpoint),
-		UpstreamEndpoint:      optionalTrimmedStringPtr(input.UpstreamEndpoint),
-		InputTokens:           actualInputTokens,
-		OutputTokens:          result.Usage.OutputTokens,
-		CacheCreationTokens:   result.Usage.CacheCreationInputTokens,
-		CacheReadTokens:       result.Usage.CacheReadInputTokens,
-		ImageOutputTokens:     result.Usage.ImageOutputTokens,
+		UserID:              user.ID,
+		APIKeyID:            apiKey.ID,
+		AccountID:           account.ID,
+		RequestID:           requestID,
+		Model:               result.Model,
+		RequestedModel:      requestedModel,
+		UpstreamModel:       optionalNonEqualStringPtr(result.UpstreamModel, result.Model),
+		ServiceTier:         result.ServiceTier,
+		ReasoningEffort:     result.ReasoningEffort,
+		InboundEndpoint:     optionalTrimmedStringPtr(input.InboundEndpoint),
+		UpstreamEndpoint:    optionalTrimmedStringPtr(input.UpstreamEndpoint),
+		InputTokens:         actualInputTokens,
+		OutputTokens:        result.Usage.OutputTokens,
+		CacheCreationTokens: result.Usage.CacheCreationInputTokens,
+		CacheReadTokens:     result.Usage.CacheReadInputTokens,
+		ImageOutputTokens:   result.Usage.ImageOutputTokens,
 	}
 	if cost != nil {
 		usageLog.InputCost = cost.InputCost