Add right/wrong marking with steal mechanism and question stats

Adds Correct/Wrong buttons to admin panel that track question
answer stats across games and implement a steal system where
the next team gets one chance to answer if the first team is wrong.

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

migrations/env.py

@@ -93,6 +93,7 @@ def run_migrations_online():
     conf_args = current_app.extensions['migrate'].configure_args
     if conf_args.get("process_revision_directives") is None:
         conf_args["process_revision_directives"] = process_revision_directives
+    conf_args.pop("render_as_batch", None)
 
     connectable = get_engine()