From 9da06d918fbfab7850ada774ee85d905d8aff650 Mon Sep 17 00:00:00 2001
From: MoerAI <friendnt@g.skku.edu>
Date: Fri, 13 Mar 2026 16:40:26 +0900
Subject: [PATCH] fix(windows): add windowsHide to detached spawn calls to
 suppress console windows (#44693)

The restart helper and taskkill spawn calls were missing windowsHide: true,
causing visible command prompt windows to flash on screen during gateway
restart and process cleanup on Windows.
---
 src/cli/update-cli/restart-helper.test.ts | 3 +++
 src/cli/update-cli/restart-helper.ts      | 1 +
 src/process/kill-tree.ts                  | 1 +
 3 files changed, 5 insertions(+)

diff --git a/src/cli/update-cli/restart-helper.test.ts b/src/cli/update-cli/restart-helper.test.ts
index c8b59d69afa..847893e9f23 100644
--- a/src/cli/update-cli/restart-helper.test.ts
+++ b/src/cli/update-cli/restart-helper.test.ts
@@ -287,6 +287,7 @@ describe("restart-helper", () => {
       expect(spawn).toHaveBeenCalledWith("/bin/sh", [scriptPath], {
         detached: true,
         stdio: "ignore",
+        windowsHide: true,
       });
       expect(mockChild.unref).toHaveBeenCalled();
     });
@@ -302,6 +303,7 @@ describe("restart-helper", () => {
       expect(spawn).toHaveBeenCalledWith("cmd.exe", ["/d", "/s", "/c", scriptPath], {
         detached: true,
         stdio: "ignore",
+        windowsHide: true,
       });
       expect(mockChild.unref).toHaveBeenCalled();
     });
@@ -317,6 +319,7 @@ describe("restart-helper", () => {
       expect(spawn).toHaveBeenCalledWith("cmd.exe", ["/d", "/s", "/c", `"${scriptPath}"`], {
         detached: true,
         stdio: "ignore",
+        windowsHide: true,
       });
     });
   });
diff --git a/src/cli/update-cli/restart-helper.ts b/src/cli/update-cli/restart-helper.ts
index c27f25cdc49..a68fab161fa 100644
--- a/src/cli/update-cli/restart-helper.ts
+++ b/src/cli/update-cli/restart-helper.ts
@@ -169,6 +169,7 @@ export async function runRestartScript(scriptPath: string): Promise<void> {
   const child = spawn(file, args, {
     detached: true,
     stdio: "ignore",
+    windowsHide: true,
   });
   child.unref();
 }
diff --git a/src/process/kill-tree.ts b/src/process/kill-tree.ts
index e3f83f63a0e..6f0d752e4c5 100644
--- a/src/process/kill-tree.ts
+++ b/src/process/kill-tree.ts
@@ -83,6 +83,7 @@ function runTaskkill(args: string[]): void {
     spawn("taskkill", args, {
       stdio: "ignore",
       detached: true,
+      windowsHide: true,
     });
   } catch {
     // Ignore taskkill spawn failures