gate live-upstream browser e2e behind ANIWEB_LIVE_TESTS=1: provider rotation/takedowns were turning the suite red for non-regressions; default suite is hermetic (33 tests) again

tests/test_browser.py

@@ -2,15 +2,24 @@
 
 Run via pytest (see conftest.py for the throwaway server). Covers what
 HTTP tests can't: the login UI, the user chip, and real video playback
-behind auth. Skipped if playwright is not installed.
+behind auth.
+
+These tests scrape and play LIVE upstream content, so they fail whenever a
+provider is mid-rotation or a title is taken down — that is not a code
+regression. They therefore stay OFF by default (the default suite must be
+deterministic); run them deliberately with ANIWEB_LIVE_TESTS=1.
 """
 import asyncio
 import http.cookiejar
 import json
+import os
 import urllib.request
 
 import pytest
 
+if os.environ.get("ANIWEB_LIVE_TESTS") != "1":
+    pytest.skip("live-upstream e2e — run with ANIWEB_LIVE_TESTS=1", allow_module_level=True)
+
 async_playwright = pytest.importorskip("playwright.async_api").async_playwright
 
 BASE = "http://127.0.0.1:8399"