add user to db on any action

supergenerator.py

@@ -133,6 +133,22 @@ def set_user_config(
         }
 
 
+def ensure_user(
+    user_id,
+    model_name=DEFAULT_MODEL,
+    stream_mode=DEFAULT_STREAM,
+    call_mode=DEFAULT_CALL
+):
+    with shelve.open("users") as db:
+        key = str(user_id)
+
+        if key not in db:
+            db[key] = {
+                "model": model_name,
+                "stream": stream_mode,
+                "call": call_mode,
+            }
+
 def get_user_config(user_id):
     with shelve.open("users") as db:
         return db.get(