- LoadOTIOTask/SaveOTIOTask de-Qt'd: graph traversal and construction
through oaknode C ABI (find_input_footage, sequence defaults, block
factories, context positions), track creation through oaktimeline's
add_track command; the OTIO import dialog becomes a facade callback
(headless default: accept all)
- oaknode additions: find_input_footage, sequence_set_default_parameters
- USE_OTIO + otio-install libs wired into oaktask; OTIO dylibs copied
next to liboaktask for @loader_path resolution
- OTIO round-trip test passes; build-oaktask 106/106 green