Create app.py

app.py

@@ -0,0 +1,12 @@
+print("--- app.py: TOP OF FILE ---")
+import streamlit as st
+print("--- app.py: Streamlit imported ---")
+import os
+print("--- app.py: os imported ---")
+
+st.set_page_config(page_title="Clean Slate Test", page_icon="🧼")
+st.title("🧼 Clean Slate Test App")
+st.write("If you see this, the basic Streamlit environment on a FRESH SPACE is working.")
+print("--- app.py: Streamlit UI rendered ---")
+print(f"CWD: {os.getcwd()}")
+print("--- app.py: END OF FILE ---")