fix(sdk): preserve zero run timeout watchdog

packages/sdk/src/client.ts

@@ -790,9 +790,11 @@ export class RunsNamespace {
   constructor(private readonly client: OpenClaw) {}
 
   async create(params: RunCreateParams): Promise<Run> {
-    const raw = await this.client.request("agent", buildAgentParams(params), {
+    const timeoutMs = normalizeTimeoutMs(params.timeoutMs);
+    const normalizedParams = timeoutMs !== undefined ? { ...params, timeoutMs } : params;
+    const raw = await this.client.request("agent", buildAgentParams(normalizedParams), {
       expectFinal: false,
-      timeoutMs: params.timeoutMs,
+      ...(timeoutMs !== undefined ? { timeoutMs: timeoutMs === 0 ? null : timeoutMs } : {}),
     });
     const record = asRecord(raw);
     const runId = readOptionalString(record.runId);

packages/sdk/src/index.test.ts

@@ -445,6 +445,11 @@ describe("OpenClaw SDK", () => {
       timeoutMs: 1_500,
       idempotencyKey: "timeout-test",
     });
+    await oc.runs.create({
+      input: "run without SDK watchdog",
+      timeoutMs: 0,
+      idempotencyKey: "no-watchdog-test",
+    });
 
     expect(requireTransportCall(transport.calls, 0)).toEqual({
       method: "agent",
@@ -455,6 +460,15 @@ describe("OpenClaw SDK", () => {
         idempotencyKey: "timeout-test",
       },
     });
+    expect(requireTransportCall(transport.calls, 1)).toEqual({
+      method: "agent",
+      options: { expectFinal: false, timeoutMs: null },
+      params: {
+        message: "run without SDK watchdog",
+        timeout: 0,
+        idempotencyKey: "no-watchdog-test",
+      },
+    });
     await expect(
       oc.runs.create({
         input: "bad timeout",