feat: expose bounded workflow activation and signal history

internal/transport/httpserver/workflows.go

@@ -15,6 +15,7 @@ import (
 // RegisterWorkflows 只适配协议，实际授权、并发版本、原键回执及审计由事务服务校验。
 func RegisterWorkflows(server *http.Server, instances *instance.Service, controls *control.Service, signals *signal.Service, reviews *recovery.Service) {
 	mux := server.Handler.(*http.ServeMux)
+	registerWorkflowHistory(mux, instances, signals)
 	mux.HandleFunc("POST /v1/workflows", wrap(func(r *http.Request, t auth.Token) (any, int, error) {
 		if _, err := historyQuery(r, false); err != nil {
 			return nil, 0, err