fix: use importlib to load demo app + streamlit config.toml

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.streamlit/config.toml

@@ -1,16 +1,6 @@
-[theme]
-base            = "dark"
-primaryColor    = "#00d4ff"
-backgroundColor = "#0f0f1a"
-secondaryBackgroundColor = "#151525"
-textColor       = "#e2e8f0"
-font            = "sans serif"
-
 [server]
-headless        = true
-port            = 7860
-enableCORS      = true
-maxUploadSize   = 50
-
-[browser]
-gatherUsageStats = false
+headless = true
+port = 7860
+address = "0.0.0.0"
+enableCORS = false
+enableXsrfProtection = false

streamlit_app.py

@@ -1,16 +1,21 @@
 import sys, os, traceback
 import streamlit as st
 from pathlib import Path
+import importlib.util
 
 root = Path(__file__).resolve().parent
 sys.path.insert(0, str(root))
 os.chdir(str(root))
 
+demo_file = root / "demo" / "streamlit_app.py"
+
 try:
-    demo = root / "demo" / "streamlit_app.py"
-    with open(demo, encoding="utf-8") as f:
-        code = f.read()
-    exec(compile(code, str(demo), "exec"), {"__file__": str(demo), "__name__": "__main__"})
+    spec = importlib.util.spec_from_file_location("spindleflow_demo", str(demo_file))
+    mod  = importlib.util.module_from_spec(spec)
+    mod.__file__ = str(demo_file)
+    sys.modules["spindleflow_demo"] = mod
+    spec.loader.exec_module(mod)
+    mod.main()
 except Exception as e:
-    st.error(f"App failed to load: {e}")
+    st.error(f"SpindleFlow failed to load: {e}")
     st.code(traceback.format_exc())