test(web-e2e): scope the Stalker radio rail toggles to the rail

The workspace header now carries a second "Hide/Show channels list" toggle,
so the role+name locators matched more than one button and tripped
Playwright's strict mode. Target the rail's own chevron and the floating
restore button, and assert the header toggle mirrors the state.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

apps/web-e2e/src/stalker.e2e.ts

@@ -189,7 +189,9 @@ async function resetMockServer(
 
     for (let attempt = 0; attempt < 3; attempt += 1) {
         try {
-            const response = await request.post(`${MOCK_SERVER}/reset?${query}`);
+            const response = await request.post(
+                `${MOCK_SERVER}/reset?${query}`
+            );
             if (response.ok()) {
                 return;
             }
@@ -550,13 +552,22 @@ test('@stalker radio — stations use the inline audio player without EPG', asyn
         timeout: 20_000,
     });
 
-    await page.getByRole('button', { name: 'Hide channels list' }).click();
-    const restoreButton = page.getByRole('button', {
-        name: 'Show channels list',
-    });
+    // The rail's own chevron hides the list; the workspace header carries a
+    // second toggle with the same accessible name, so scope to the rail.
+    await page
+        .locator('.sidebar')
+        .getByRole('button', { name: 'Hide channels list' })
+        .click();
+    const restoreButton = page.locator('.sidebar-restore');
     await expect(restoreButton).toBeVisible();
+    await expect(
+        page.locator('app-workspace-shell-header .header-sidebar-toggle')
+    ).toHaveAttribute('aria-pressed', 'false');
     await restoreButton.click();
     await expect(stations.first()).toBeVisible();
+    await expect(
+        page.locator('app-workspace-shell-header .header-sidebar-toggle')
+    ).toHaveAttribute('aria-pressed', 'true');
 
     await expect(page.locator('app-epg-timeline')).toHaveCount(0);
     expect(epgRequests).toHaveLength(0);
@@ -1183,9 +1194,7 @@ test('@stalker series watched toggle — embedded series marks and clears from t
     const menuTrigger = page.locator('[data-test-id="series-watch-menu"]');
     await expect(menuTrigger).toBeVisible();
     await menuTrigger.click();
-    const seriesToggle = page.locator(
-        '[data-test-id="toggle-series-watched"]'
-    );
+    const seriesToggle = page.locator('[data-test-id="toggle-series-watched"]');
     await expect(seriesToggle).toBeVisible();
     await expect(seriesToggle).toContainText(
         `Mark series as watched (${episodeCount})`