bf0bcf73e2
Wire the existing TUI autocompleteMaxVisible plumbing into the declarative settings system so it appears in /settings under the Input tab. Users can pick from 3/5/7/10/15/20 items; the TUI editor clamps to 3-20 regardless. - Add autocompleteMaxVisible to SETTINGS_SCHEMA (number, default 5) - Add OPTION_PROVIDERS entry for the submenu dropdown - Handle runtime side-effect in selector-controller - Set initial value from settings on editor construction - Add tests for default, runtime, persistence, and config loading