Improve create_session.dspy parameter handling for both request.form and direct params

wwwroot/hermes-web-cli/sessions/create_session.dspy

@@ -4,7 +4,18 @@
 
 try:
     # Extract form data from request context
-    form_data = request.form if hasattr(request, 'form') else {}
+    # In Sage system, params passed via urlwidget are available in request.form
+    form_data = {}
+    
+    # Try to get data from request.form (standard for POST requests)
+    if hasattr(request, 'form'):
+        form_data = dict(request.form)
+    # Fallback: check if data is passed as keyword arguments
+    elif hasattr(locals(), 'service_id'):
+        form_data = {
+            'service_id': locals().get('service_id', ''),
+            'initial-prompt': locals().get('initial-prompt', '')
+        }
     
     # Get required parameters
     service_id = form_data.get('service_id')