refactor: enhance test workflow and integration tests with cookies handling and configuration checks

tests/conftest.py

@@ -1,13 +1,22 @@
 import pytest
 
+from app.core.config import config
 from app.core.cookies import load_cookies
 from app.core.exceptions import CookiesError
 
 
 @pytest.fixture
 def cookies():
-    """Load Fragment cookies, skip the test if they are unavailable."""
+    """Load Fragment cookies; skip the test if they are unavailable."""
     try:
         return load_cookies()
     except CookiesError as exc:
         pytest.skip(f"Cookies unavailable — {exc}")
+
+
+@pytest.fixture
+def tests_config():
+    """Require a fully configured environment (SEED + API_KEY); skip otherwise."""
+    if config is None:
+        pytest.skip("Config unavailable — set SEED and API_KEY in .env or environment")
+    return config