refactor(agent-tools): reuse gateway option parsing

src/agents/tools/gateway.ts

@@ -1,6 +1,7 @@
 import { loadConfig, resolveGatewayPort } from "../../config/config.js";
 import { callGateway } from "../../gateway/call.js";
 import { GATEWAY_CLIENT_MODES, GATEWAY_CLIENT_NAMES } from "../../utils/message-channel.js";
+import { readStringParam } from "./common.js";
 
 export const DEFAULT_GATEWAY_URL = "ws://127.0.0.1:18789";
 
@@ -10,6 +11,14 @@ export type GatewayCallOptions = {
   timeoutMs?: number;
 };
 
+export function readGatewayCallOptions(params: Record<string, unknown>): GatewayCallOptions {
+  return {
+    gatewayUrl: readStringParam(params, "gatewayUrl", { trim: false }),
+    gatewayToken: readStringParam(params, "gatewayToken", { trim: false }),
+    timeoutMs: typeof params.timeoutMs === "number" ? params.timeoutMs : undefined,
+  };
+}
+
 function canonicalizeToolGatewayWsUrl(raw: string): { origin: string; key: string } {
   const input = raw.trim();
   let url: URL;