Extend the typed inference API so callers can drive torch.compile per
component without falling back to the legacy flat-kwargs pathway.
* ``CompileConfig`` now exposes ``vae_enabled``, ``audio_vae_enabled``,
``dit_kwargs``, ``text_encoder_kwargs``, ``vae_kwargs``,
``audio_vae_kwargs`` alongside the existing ``enabled`` /
``text_encoder_enabled`` switches. The master ``backend``/
``fullgraph``/``mode``/``dynamic``/``extras`` continue to apply to
every compiled submodule unless a per-component kwargs dict is
non-empty (in which case it overrides entirely — matches the
FastVideo-internal precedent).
* Add the matching runtime carrier fields on ``FastVideoArgs``:
``enable_torch_compile_text_encoder/vae/audio_vae`` plus
``torch_compile_kwargs_dit/text_encoder/vae/audio_vae``. These let
the legacy flat-kwargs path round-trip through the typed config.
* ``api/compat.legacy_from_pretrained_to_config`` now lifts the new
flat kwargs into ``CompileConfig``, and
``generator_config_to_fastvideo_args`` writes them back out so
``VideoGenerator.from_pretrained(model_path, ...)`` callers keep
working unchanged.
No behavior change yet — these surfaces are ports of carriers only.
The composed pipeline base will start consuming them in the next
commit.
Co-authored-by: Junda (David) Su <90978028+Davids048@users.noreply.github.com>
Co-authored-by: Matthew Noto <99706358+RandNMR73@users.noreply.github.com>
Co-authored-by: XOR-op <17672363+XOR-op@users.noreply.github.com>
Co-authored-by: Zhang Peiyuan <42993249+jzhang38@users.noreply.github.com>
