- real.rs rewritten over module Rust APIs (Arc<Mutex<Project>> +
NodeId; the addref handle dance and renderer boxes are gone);
AppEngine trait and all panels untouched
- new app assembly layers: graphops (project/timeline/edit
primitives), effectchain (chain composition with undo groups),
renderops (montage build + ticket render + ExportTask export),
library via oakstorage directly
- module-side safe API additions: oakundo global value-semantic
push/undo/redo + from_closures, oakstorage project_arc_of
- deleted: src/oakui/ffi.rs, src/oakui/host_syms.rs, the dylib link
config in build.rs (only the gpui IOSurface framework link remains)
- the binary carries zero liboakengine references (otool/nm verified);
101 app tests green incl. the real-render and full-res e2e tests
- behavior improvements for free: sequences land in the project graph
(the facade scratch-project deviation is gone), footage drops take
one undo record, effect remove/reorder undo restores edges