fix(windows): hide console windows for AEC, text-monitor, and mic-listener

src/helpers/audioActivityDetector.js

@@ -262,6 +262,7 @@ class AudioActivityDetector extends EventEmitter {
       // stdin must be "pipe" — the Windows binary monitors stdin for parent death
       const child = spawn(binaryPath, ["--exclude-pid", String(process.pid)], {
         stdio: ["pipe", "pipe", "pipe"],
+        windowsHide: true,
       });
       this._listenerProcess = child;
 

src/helpers/meetingAecManager.js

@@ -78,6 +78,7 @@ class MeetingAecManager {
 
     const child = spawn(binaryPath, ["--sample-rate", String(SAMPLE_RATE)], {
       stdio: ["pipe", "pipe", "pipe"],
+      windowsHide: true,
     });
 
     this.process = child;

src/helpers/textEditMonitor.js

@@ -247,6 +247,7 @@ class TextEditMonitor extends EventEmitter {
 
     this.process = spawn(command, args, {
       stdio: ["pipe", "pipe", "pipe"],
+      windowsHide: true,
     });
 
     // Send original text via stdin
@@ -391,6 +392,7 @@ class TextEditMonitor extends EventEmitter {
 
     this.process = spawn(command, [...args, String(targetPid)], {
       stdio: ["pipe", "pipe", "pipe"],
+      windowsHide: true,
     });
 
     this.process.stdin.write(originalText + "\n");

test/helpers/windows-helper-spawn-hide.test.js

@@ -0,0 +1,32 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+const fs = require("fs");
+const path = require("path");
+
+const ROOT = path.join(__dirname, "../..");
+
+function read(rel) {
+  return fs.readFileSync(path.join(ROOT, rel), "utf8");
+}
+
+test("meeting AEC helper spawn sets windowsHide", () => {
+  const src = read("src/helpers/meetingAecManager.js");
+  assert.match(
+    src,
+    /spawn\(binaryPath,\s*\["--sample-rate"[\s\S]*?windowsHide:\s*true/
+  );
+});
+
+test("text edit monitor spawns set windowsHide", () => {
+  const src = read("src/helpers/textEditMonitor.js");
+  const hides = (src.match(/windowsHide:\s*true/g) || []).length;
+  assert.ok(hides >= 2, `expected both monitor spawns to set windowsHide, got ${hides}`);
+});
+
+test("Windows mic-listener spawn sets windowsHide", () => {
+  const src = read("src/helpers/audioActivityDetector.js");
+  assert.match(
+    src,
+    /_tryEventDrivenWin32[\s\S]*?spawn\(binaryPath,\s*\["--exclude-pid"[\s\S]*?windowsHide:\s*true/
+  );
+});