diff --git a/backend/internal/handler/gateway_handler_warmup_intercept_unit_test.go b/backend/internal/handler/gateway_handler_warmup_intercept_unit_test.go
index 1fdc46ba28..e2abf9af0c 100644
--- a/backend/internal/handler/gateway_handler_warmup_intercept_unit_test.go
+++ b/backend/internal/handler/gateway_handler_warmup_intercept_unit_test.go
@@ -169,6 +169,7 @@ func newTestGatewayHandler(t *testing.T, group *service.Group, accounts []*servi
 		nil, // channelService
 		nil, // resolver
 		nil, // balanceNotifyService
+		nil, // signaturePool
 	)
 
 	// RunModeSimple：跳过计费检查，避免引入 repo/cache 依赖。
diff --git a/backend/internal/service/signature/harvester.go b/backend/internal/service/signature/harvester.go
index 4f2c9d9379..dad622b4f9 100644
--- a/backend/internal/service/signature/harvester.go
+++ b/backend/internal/service/signature/harvester.go
@@ -75,8 +75,8 @@ type harvestReader struct {
 	skip   func() bool
 
 	stream  bool
-	lineBuf []byte            // SSE line accumulator
-	bodyBuf []byte            // non-streaming body accumulator (bounded)
+	lineBuf []byte              // SSE line accumulator
+	bodyBuf []byte              // non-streaming body accumulator (bounded)
 	seen    map[string]struct{} // de-dupe within a single response
 	closed  bool
 }
diff --git a/backend/internal/service/sticky_session_test.go b/backend/internal/service/sticky_session_test.go
index 11ace7bd8e..02369b19ef 100644
--- a/backend/internal/service/sticky_session_test.go
+++ b/backend/internal/service/sticky_session_test.go
@@ -122,8 +122,8 @@ func TestShouldClearStickySession(t *testing.T) {
 		{
 			name: "overloaded account",
 			account: &Account{
-				Status:       StatusActive,
-				Schedulable:  true,
+				Status:        StatusActive,
+				Schedulable:   true,
 				OverloadUntil: &future,
 			},
 			requestedModel: "",