Add container/VM autodiscovery, optional username in config, and management scripts

app/app.py

@@ -61,6 +61,9 @@ def parse_infrastructure_conf():
                     url = parts[1] if len(parts) > 1 else ''
                     if '@' in entry:
                         user, host = entry.split('@', 1)
+                    else:
+                        user, host = 'infmap', entry
+                    if host:
                         servers.append({
                             'group': current_group or 'Default',
                             'username': user.strip(),