From 2c8845f7045fc8a2159a063385d1c2bafbbecb89 Mon Sep 17 00:00:00 2001
From: Haitao Pan <manbuzhe2009@qq.com>
Date: Fri, 17 Apr 2026 19:21:32 +0800
Subject: [PATCH] fix(rpc): align envelopes for better frontend compatibility
 and fix legacy field mapping

---
 internal/shared/rpc.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/internal/shared/rpc.go b/internal/shared/rpc.go
index 281a314..a4878d1 100644
--- a/internal/shared/rpc.go
+++ b/internal/shared/rpc.go
@@ -54,6 +54,7 @@ func ResultEnvelope(id any, result map[string]any) map[string]any {
 		"type":    "res",
 		"ok":      true,
 		"payload": result,
+		"seq":     0,
 	}
 }
 
@@ -69,6 +70,8 @@ func ErrorEnvelope(id any, code int, message string) map[string]any {
 		// Backward compatibility with legacy GatewayRuntime
 		"type":    "res",
 		"ok":      false,
+		"payload": nil,
+		"seq":     0,
 	}
 }
 
@@ -81,6 +84,7 @@ func NotificationEnvelope(method string, params map[string]any) map[string]any {
 		"type":    "event",
 		"event":   method,
 		"payload": params,
+		"seq":     0,
 	}
 }