4cdc8b0cec
Comma-separated extensions, cleaned and capped through FilesConfig::repair_hidden; invalid-only input emits nothing. Built by GLM 5.3 Flash via Pi. Two calendar/feed settings tests already fail at HEAD (clocks_amounts_and_log_lines, adding_and_removing_a_feed_emit_engine_commands). Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>