fix(gateway): trace restart intent reasons

src/cli/daemon-cli/lifecycle-core.test.ts

@@ -346,7 +346,10 @@ describe("runServiceRestart token drift", () => {
 
     await runServiceRestart(createServiceRunArgs());
 
-    expect(writeGatewayRestartIntentSync).toHaveBeenCalledWith({ targetPid: 1234 });
+    expect(writeGatewayRestartIntentSync).toHaveBeenCalledWith({
+      targetPid: 1234,
+      reason: "gateway.restart",
+    });
     expect(clearGatewayRestartIntentSync).not.toHaveBeenCalled();
     expect(service.restart).toHaveBeenCalledTimes(1);
   });
@@ -366,6 +369,7 @@ describe("runServiceRestart token drift", () => {
 
     expect(writeGatewayRestartIntentSync).toHaveBeenCalledWith({
       targetPid: 1234,
+      reason: "gateway.restart",
       intent: {
         waitMs: 2_500,
       },
@@ -379,7 +383,10 @@ describe("runServiceRestart token drift", () => {
 
     await expect(runServiceRestart(createServiceRunArgs())).rejects.toThrow("__exit__:1");
 
-    expect(writeGatewayRestartIntentSync).toHaveBeenCalledWith({ targetPid: 1234 });
+    expect(writeGatewayRestartIntentSync).toHaveBeenCalledWith({
+      targetPid: 1234,
+      reason: "gateway.restart",
+    });
     expect(clearGatewayRestartIntentSync).toHaveBeenCalledOnce();
   });
 

src/cli/daemon-cli/lifecycle-core.ts

@@ -574,6 +574,7 @@ export async function runServiceRestart(params: {
         const runtime = await params.service.readRuntime(process.env).catch(() => null);
         wroteRestartIntent = writeGatewayRestartIntentSync({
           targetPid: runtime?.pid,
+          reason: "gateway.restart",
           ...(restartIntent ? { intent: restartIntent } : {}),
         });
       }

src/cli/daemon-cli/lifecycle.ts

@@ -208,6 +208,7 @@ async function restartGatewayWithoutServiceManager(
   }
   writeGatewayRestartIntentSync({
     targetPid: pids[0],
+    reason: "gateway.restart",
     ...(restartIntent ? { intent: restartIntent } : {}),
   });
   signalVerifiedGatewayPidSync(pids[0], "SIGUSR1");