- Help > About Oak… opens a real dialog (was a placeholder print): name + version, the GPL-3.0 line, the Olive fork notice and the thanks to Enzo GD (Community Promoter). - Modal (gpui_widgets, submodule bump): a title-row close button on every dialog and opt-in backdrop dismissal (dismiss_on_mask) — Help > Search Actions and About use it, so they close on an outside click (previously a buttonless modal could only be closed with Escape). - Preferences general tab grows two live settings: the cache-ahead pre-render window (PlaybackPreRenderFrames, consumed by the preview scheduler every playback tick) and the library storage backend (Storage/Backend sqlite/pg + Storage/PgUrl connection string, read by oak-storage's write-through when a project binds; the pg URL field shows only for PostgreSQL and commits on dialog close). The C++ auto-recovery toggle is skipped on purpose: the Rust snapshot loop has no disable semantic, so the switch would be dead. i18n keys for all eight packs; new tests cover the about modal and the preferences writes.