Fix SSE handler generation to use correct template file

The issue was that SSE handlers were incorrectly using handler.tpl instead of sse_handler.tpl, causing the wrong handler pattern to be generated when custom templates were present. This fix ensures SSE handlers and logic use their dedicated template files (sse_handler.tpl and sse_logic.tpl) when SSE annotation is enabled.

Co-authored-by: kevwan <1918356+kevwan@users.noreply.github.com>

tools/goctl/api/gogen/genlogic.go

@@ -61,9 +61,11 @@ func genLogicByRoute(dir, rootPkg, projectPkg string, cfg *config.Config, group
 
 	subDir := getLogicFolderPath(group, route)
 	builtinTemplate := logicTemplate
+	templateFile := logicTemplateFile
 	sse := group.GetAnnotation("sse")
 	if sse == "true" {
 		builtinTemplate = sseLogicTemplate
+		templateFile = sseLogicTemplateFile
 		responseString = "error"
 		returnString = "return nil"
 		resp := responseGoTypeName(route, typesPacket)
@@ -80,7 +82,7 @@ func genLogicByRoute(dir, rootPkg, projectPkg string, cfg *config.Config, group
 		filename:        goFile + ".go",
 		templateName:    "logicTemplate",
 		category:        category,
-		templateFile:    logicTemplateFile,
+		templateFile:    templateFile,
 		builtinTemplate: builtinTemplate,
 		data: map[string]any{
 			"pkgName":      subDir[strings.LastIndex(subDir, "/")+1:],