Stage session-attributes dirty-nav via Enable instead of TTL

The unsaved-changes guard only needs a dirty page. Staging TTL opened a
nested submenu that flakes under Playwright. Enable is a single click;
TTL presets stay covered by the persist test.

Co-authored-by: mattermost-code <matty-code@mattermost.com>

e2e-tests/playwright/lib/src/ui/components/system_console/sections/system_attributes/session_attributes.ts

@@ -167,6 +167,7 @@ export default class SessionAttributes {
     async enable(fieldId: string) {
         await this.openDotMenu(fieldId);
         await this.page.getByTestId(`session-attribute-enable-${fieldId}`).click();
+        await expect(this.dotMenu(fieldId)).toBeHidden();
     }
 
     /**

e2e-tests/playwright/specs/functional/system_console/session_attributes/session_attributes.spec.ts

@@ -190,12 +190,12 @@ test.describe('System Console - Session Attributes', () => {
         // # Navigate to Session Attributes page
         await sa.goto();
 
-        // # Capture the rendered TTL, then stage a different TTL (24h)
-        const beforeTtl = (await sa.ttl(field.id).textContent())?.trim() ?? '';
-        await sa.setTtlPreset(field.id, 86400);
+        // # Stage Enable. This test only needs a dirty page; TTL/grace presets
+        // are covered by the persist test and their nested submenu is racy.
+        await sa.enable(field.id);
 
         // * Verify the edit is staged and Save is enabled
-        await expect(sa.ttl(field.id)).toHaveText('24h');
+        await expect(sa.status(field.id)).toContainText('Enabled');
         await expect(sa.saveButton).toBeEnabled();
 
         // # Attempt to navigate away via the sidebar while dirty
@@ -213,8 +213,8 @@ test.describe('System Console - Session Attributes', () => {
         // # Cancel the staged edit via the Save Changes panel
         await sa.cancel();
 
-        // * Verify the TTL reverted and Save returned to disabled
-        await expect(sa.ttl(field.id)).toHaveText(beforeTtl);
+        // * Verify Enable reverted and Save returned to disabled
+        await expect(sa.status(field.id)).toContainText('Disabled');
         await expect(sa.saveButton).toBeDisabled();
     });