Three loose ends from earlier hygiene passes that the final PR review
caught:
* Empty out 27 sub-metric ``__init__.py`` files that still re-exported
the metric class. The earlier ``54f26bea`` commit only cleaned 2 of
them; the rest still carried ``from .metric import FooMetric # noqa:
F401`` lines copied from the original wm-eval port. Auto-discovery
doesn't need them, and ``get_metric("group.name")`` is the canonical
access pattern. Now uniformly empty across all sub-metric inits.
* Fix stale layout references in ``fastvideo/eval/README.md`` and
``.agents/workflows/evaluation-development.md`` that still described
the abandoned ``<bench>/external/upstream/`` per-metric layout. The
actual layout is the flat ``fastvideo/third_party/eval/<bench>/`` we
switched to during the port. Also drops the stale ``_third_party``
example from ``fastvideo/eval/metrics/__init__.py``'s docstring (the
underscore-skip rule is unchanged; the example was just wrong).
* Drop ``open_clip_torch`` and ``torchmetrics`` from the
``[eval]`` extra. Neither is imported anywhere under
``fastvideo/eval/`` (or in the vbench submodule we vendor); they were
carried over from the wm-eval port's heavier dep graph.
Verified: 32 metrics still register, 33/4 tests pass/skip on 1 GPU.
shaoxiongduan
7fa4fb50bb