feature_flags has id, name, description, is_enabled, rollout_percentage and
conditions. The list ordered by a category column that does not exist, so
the query failed and the page always said there were no flags (13 exist);
create and edit wrote label, label_ar, target, category and target_value
and were all rejected. Flags now get Arabic names and groups for the
platform's own ids, a partial rollout is rollout_percentage, and the
maintenance_mode message, English message and end time go in conditions
({message_ar, message, until}) as the game's api/config.php reads them.
Turning maintenance on asks for confirmation; built-in flags cannot be
deleted, only switched off.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>