Fix: Add port configuration to app.py and fix config.toml formatting

.streamlit/config.toml

@@ -1,6 +1,6 @@
-  [server]
-  port = 7860
-  address = "0.0.0.0"
-  headless = true
-  enableCORS = false
-  enableXsrfProtection = false
+[server]
+port = 7860
+address = "0.0.0.0"
+headless = true
+enableCORS = false
+enableXsrfProtection = false

app.py

@@ -6,6 +6,10 @@ from gateway_client import delete_profile, ingest_and_rewrite
 from llm import chat, set_model
 from model_config import MODEL_CHOICES, MODEL_TO_PROVIDER
 
+# Configure Streamlit for Hugging Face Spaces (port 7860)
+os.environ["STREAMLIT_SERVER_PORT"] = "7860"
+os.environ["STREAMLIT_SERVER_ADDRESS"] = "0.0.0.0"
+
 
 def rewrite_message(
     msg: str, persona_name: str, show_rationale: bool, skip_rewrite: bool