fix(portals): nineteenth review round and the web E2E line limit

- A queued Xtream episode launch checks the page owner before it closes
  the running player, so a viewer who left the series keeps playback.
- A Play or episode choice made while a forced launch settles starts
  once it settled instead of being dropped; only the latest choice runs.
- Both series menus disable the bulk watched actions while a start has
  not published its session yet.
- The series-menu E2E helpers are shared, which brings the Stalker web
  spec back under the line limit; the inline episode state derivation
  moves into ui/playback.

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

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

@@ -286,3 +286,24 @@ export async function expectSeriesSurfacesInBothThemes(
             .click();
     }
 }
+
+/** Opens the series "…" menu (if closed) and returns the row with that test id. */
+export async function seriesMenuRow(page: Page, rowTestId: string) {
+    const row = page.locator(`[data-test-id="${rowTestId}"]`);
+    if (!(await row.isVisible().catch(() => false))) {
+        await page.locator('[data-testid="series-more-menu"]').click();
+    }
+    await expect(row).toBeVisible({ timeout: 15_000 });
+    return row;
+}
+
+/** Closes an open series menu without choosing a row. */
+export async function closeSeriesMenu(page: Page): Promise<void> {
+    // The panel, not the backdrop: a backdrop locator can match a second
+    // overlay and then fail the strict check, leaving the menu open.
+    const panel = page.locator('[data-test-id="vod-more-menu"]');
+    if (await panel.isVisible().catch(() => false)) {
+        await page.keyboard.press('Escape');
+    }
+    await expect(panel).toBeHidden({ timeout: 10_000 });
+}

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

@@ -1,5 +1,10 @@
 import { type APIRequestContext, type Page } from '@playwright/test';
-import { expectSeriesSurfacesInBothThemes, setInputValue } from './e2e-helpers';
+import {
+    closeSeriesMenu,
+    expectSeriesSurfacesInBothThemes,
+    seriesMenuRow,
+    setInputValue,
+} from './e2e-helpers';
 import {
     verifyStalkerCategorySearch,
     verifyStalkerPlaybackCategoryReturn,
@@ -1136,23 +1141,6 @@ test('@stalker season watched toggle — embedded series marks and clears every
     await closeSeriesMenu(page);
 });
 
-
-/** Opens the series "…" menu (if closed) and returns the row with that test id. */
-async function seriesMenuRow(page: Page, rowTestId: string) {
-    const row = page.locator(`[data-test-id="${rowTestId}"]`);
-    if (!(await row.isVisible().catch(() => false))) {
-        await page.locator('[data-testid="series-more-menu"]').click();
-    }
-    await expect(row).toBeVisible({ timeout: 15_000 });
-    return row;
-}
-
-async function closeSeriesMenu(page: Page): Promise<void> {
-    if (await page.locator('.cdk-overlay-backdrop').isVisible().catch(() => false)) {
-        await page.keyboard.press('Escape');
-    }
-}
-
 test('@stalker series watched toggle — embedded series marks and clears from the header menu', async ({
     page,
     request,

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

@@ -1,8 +1,10 @@
 import type { APIRequestContext, Page } from '@playwright/test';
 import { expect, test } from './fixtures';
 import {
+    closeSeriesMenu,
     pressTab,
     rasterizedBorderContrast,
+    seriesMenuRow,
     setInputValue,
     surfaceContrast,
     waitForScrollIdle,
@@ -802,26 +804,6 @@ test('@xtream season cover — shows the provider season cover and follows the s
 // unwatch-all once the whole series is watched, and survives a reload.
 // ---------------------------------------------------------------------------
 
-/** Opens the series "…" menu (if closed) and returns the row with that test id. */
-async function seriesMenuRow(page: Page, rowTestId: string) {
-    const row = page.locator(`[data-test-id="${rowTestId}"]`);
-    if (!(await row.isVisible().catch(() => false))) {
-        await page.locator('[data-testid="series-more-menu"]').click();
-    }
-    await expect(row).toBeVisible({ timeout: 15_000 });
-    return row;
-}
-
-async function closeSeriesMenu(page: Page): Promise<void> {
-    // The panel, not the backdrop: a backdrop locator can match a second
-    // overlay and then fail the strict check, leaving the menu open.
-    const panel = page.locator('[data-test-id="vod-more-menu"]');
-    if (await panel.isVisible().catch(() => false)) {
-        await page.keyboard.press('Escape');
-    }
-    await expect(panel).toBeHidden({ timeout: 10_000 });
-}
-
 test('@xtream series watched toggle — marks every season from the header menu, survives reload, and clears again', async ({
     page,
     request,