add passwords again

app.py

@@ -1,4 +1,5 @@
 import base64
+import os
 
 import modal
 import streamlit as st
@@ -29,9 +30,13 @@ def run():
         label="Transkribieren", disabled=(not audio_file and not url)
     )
 
+    if password not in [os.environ["PASSWORD"], os.environ["ROOT_PASSWORD"]]:
+        st.error("Zugriffscode ist falsch.")
+        st.stop()
+
     if audio_file is not None:
         st.audio(audio_file)
-        cutoff = None if password == "" else 60_000
+        cutoff = None if password == os.environ["ROOT_PASSWORD"] else 60_000
         audio_file = AudioSegment.from_file(audio_file)[:cutoff]
         audio_b64 = base64.b64encode(audio_file.export().read()).decode("ascii")
     if url: