Shell env: hide Windows login probe

CHANGELOG.md

@@ -6,6 +6,7 @@ Docs: https://docs.openclaw.ai
 
 ### Changes
 
+- Shell env/Windows: hide the login-shell environment probe child window so gateway startup and shell-env refreshes do not flash a console on Windows. Fixes #78159.
 - MS Teams: surface blocked Bot Framework egress by logging JWKS fetch network failures and adding a Bot Connector send hint for transport-level reply failures. Fixes #77674. (#78081) Thanks @Beandon13.
 - PR triage: mark external pull requests with `proof: supplied` when Barnacle finds structured real behavior proof, keep stale negative proof labels in sync across CRLF-edited PR bodies, and let ClawSweeper own the stronger `proof: sufficient` judgement.
 - Sessions CLI: show the selected agent runtime in the `openclaw sessions` table so terminal output matches the runtime visibility already present in JSON/status surfaces. Thanks @vincentkoc.

src/infra/shell-env.test.ts

@@ -112,7 +112,11 @@ describe("shell env fallback", () => {
 
   function expectBinShFallbackExec(exec: ReturnType<typeof vi.fn>) {
     expect(exec).toHaveBeenCalledTimes(1);
-    expect(exec).toHaveBeenCalledWith("/bin/sh", ["-l", "-c", "env -0"], expect.any(Object));
+    expect(exec).toHaveBeenCalledWith(
+      "/bin/sh",
+      ["-l", "-c", "env -0"],
+      expect.objectContaining({ windowsHide: true }),
+    );
   }
 
   it("is disabled by default", () => {
@@ -423,7 +427,11 @@ describe("shell env fallback", () => {
 
       expect(res.ok).toBe(true);
       expect(exec).toHaveBeenCalledTimes(1);
-      expect(exec).toHaveBeenCalledWith(trustedShell, ["-l", "-c", "env -0"], expect.any(Object));
+      expect(exec).toHaveBeenCalledWith(
+        trustedShell,
+        ["-l", "-c", "env -0"],
+        expect.objectContaining({ windowsHide: true }),
+      );
     });
   });
 

src/infra/shell-env.ts

@@ -92,6 +92,7 @@ function execLoginShellEnvZero(params: {
     timeout: params.timeoutMs,
     maxBuffer: DEFAULT_MAX_BUFFER_BYTES,
     env: params.env,
+    windowsHide: true,
     stdio: ["ignore", "pipe", "pipe"],
   });
 }