fix: verify gateway restart health after daemon restart

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

@@ -1,3 +1,4 @@
+import type { Writable } from "node:stream";
 import { loadConfig } from "../../config/config.js";
 import { resolveIsNixMode } from "../../config/paths.js";
 import { checkTokenDrift } from "../../daemon/service-audit.js";
@@ -18,6 +19,13 @@ type DaemonLifecycleOptions = {
   json?: boolean;
 };
 
+type RestartPostCheckContext = {
+  json: boolean;
+  stdout: Writable;
+  warnings: string[];
+  fail: (message: string, hints?: string[]) => void;
+};
+
 async function maybeAugmentSystemdHints(hints: string[]): Promise<string[]> {
   if (process.platform !== "linux") {
     return hints;
@@ -240,6 +248,7 @@ export async function runServiceRestart(params: {
   renderStartHints: () => string[];
   opts?: DaemonLifecycleOptions;
   checkTokenDrift?: boolean;
+  postRestartCheck?: (ctx: RestartPostCheckContext) => Promise<void>;
 }): Promise<boolean> {
   const json = Boolean(params.opts?.json);
   const { stdout, emit, fail } = createActionIO({ action: "restart", json });
@@ -295,6 +304,9 @@ export async function runServiceRestart(params: {
 
   try {
     await params.service.restart({ env: process.env, stdout });
+    if (params.postRestartCheck) {
+      await params.postRestartCheck({ json, stdout, warnings, fail });
+    }
     let restarted = true;
     try {
       restarted = await params.service.isLoaded({ env: process.env });