GameStatusSelector: custom element + typed contract (retire Alpine)

The Game status dropdown is now a <game-status-selector> light-DOM custom
element: the Python builder emits the tag + kebab attrs htpy-style, behavior
lives in ts/elements/{dropdown,game-status-selector}.ts wired by the native
connectedCallback, and GameStatusSelectorProps is the codegen'd contract. The
~70-line inline-Alpine f-string is gone.

Also fix SimpleTable to collect and re-attach the media of its row/header
nodes: it stringifies cells into the table markup, which silently dropped each
cell component's declared Media — so a <game-status-selector> in a cell never
got its <script> emitted. Now Page() emits it.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

e2e/test_custom_elements_e2e.py

@@ -0,0 +1,34 @@
+import pytest
+from django.urls import reverse
+from playwright.sync_api import Page, expect
+
+
+@pytest.fixture
+def authenticated_page(live_server, page: Page, django_user_model) -> Page:
+    django_user_model.objects.create_user(username="tester", password="secret123")
+    page.goto(f"{live_server.url}{reverse('login')}")
+    page.fill('input[name="username"]', "tester")
+    page.fill('input[name="password"]', "secret123")
+    page.click('input[type="submit"]')
+    page.wait_for_url(f"{live_server.url}/tracker**")
+    return page
+
+
+@pytest.mark.django_db
+def test_game_status_selector_opens_and_patches(authenticated_page: Page, live_server):
+    from games.models import Game, Platform
+
+    platform = Platform.objects.create(name="PC", icon="pc")
+    game = Game.objects.create(name="Test Game", platform=platform, status="u")
+
+    page = authenticated_page
+    page.goto(f"{live_server.url}{reverse('games:list_games')}")
+
+    host = page.locator("game-status-selector").first
+    expect(host).to_be_attached()
+    host.locator("[data-toggle]").click()
+    expect(host.locator("[data-menu]")).to_be_visible()
+    host.locator('[data-option][data-value="f"]').click()
+    expect(host.locator("[data-menu]")).to_be_hidden()
+    game.refresh_from_db()
+    assert game.status == "f"