feat: Add ParamsStruct in middleware.Request

Author: akkuman

gen/_template/handlers.tmpl

@@ -199,6 +199,7 @@ func (s *{{ if $op.WebhookInfo }}Webhook{{ end }}Server) handle{{ $op.Name }}Req
 				}: params.{{ $param.Name }},
 				{{- end }}
 			},
+			ParamsStruct: {{- if $op.Params }}params{{- else }}nil{{- end }},
 			Raw: r,
 		}
 

middleware/middleware.go

@@ -58,6 +58,8 @@ type Request struct {
 	Body any
 	// Params is the operation parameters.
 	Params Parameters
+	// ParamsStruct is the operation parameters. May be nil, if the operation has not parameters.
+	ParamsStruct any
 	// Raw is the raw http request.
 	Raw *http.Request
 }