fix: Bug - User automatically leaves voice after short period of time

Ignore stale P2P self-disconnect voice-state echoes while this client actively owns voice, refresh noise-reduction input on re-join, and repair dual-signal E2E harness expectations.

Co-authored-by: Cursor <cursoragent@cursor.com>

e2e/helpers/voice-roster.ts

@@ -0,0 +1,49 @@
+import { type Page } from '@playwright/test';
+
+/** Wait until the side-panel roster under a voice channel lists the expected user count. */
+export async function waitForVoiceRosterCount(
+  page: Page,
+  channelName: string,
+  expectedCount: number,
+  timeout = 45_000
+): Promise<void> {
+  await page.waitForFunction(
+    ({ expected, name }) => {
+      const buttons = document.querySelectorAll(
+        `app-rooms-side-panel button[data-channel-type="voice"][data-channel-name="${name}"]`
+      );
+
+      for (const button of buttons) {
+        const panel = button.closest('app-rooms-side-panel');
+
+        if (!panel || panel.getBoundingClientRect().width === 0) {
+          continue;
+        }
+
+        const rosterDiv = button.nextElementSibling;
+
+        if (!rosterDiv) {
+          continue;
+        }
+
+        const displayNames = new Set<string>();
+
+        rosterDiv.querySelectorAll('[appThemeNode="roomVoiceUserItem"] span.text-sm').forEach((element) => {
+          const label = element.textContent?.trim();
+
+          if (label) {
+            displayNames.add(label);
+          }
+        });
+
+        if (displayNames.size === expected) {
+          return true;
+        }
+      }
+
+      return false;
+    },
+    { expected: expectedCount, name: channelName },
+    { timeout }
+  );
+}