Initial: Standalone mixer app with MixerPage, scene management, WS proxy

backend/venv/lib/python3.11/site-packages/fastapi/security/utils.py

@@ -0,0 +1,10 @@
+from typing import Optional, Tuple
+
+
+def get_authorization_scheme_param(
+    authorization_header_value: Optional[str],
+) -> Tuple[str, str]:
+    if not authorization_header_value:
+        return "", ""
+    scheme, _, param = authorization_header_value.partition(" ")
+    return scheme, param