Array annotation `repr()` emits raw class paths for dtype

[shi-eric]

Description

_ArrayAnnotationBase.__repr__() interpolates the raw dtype class object directly into the format string, producing output like:

>>> import warp as wp
>>> wp.array4d[wp.uint32]
wp.array(dtype=<class 'warp._src.types.uint32'>, ndim=4)
>>> wp.array[wp.float32]
wp.array(dtype=<class 'warp._src.types.float32'>, ndim=1)

The dtype value is a class object, and str() on a class produces the <class '...'> form.

Impact

This is user-facing because Sphinx autodoc uses repr() to render Return type fields when autodoc_typehints = "description" is set.

For example, in the Newton Physics docs, functions like create_albedo_image_output() that are annotated as -> wp.array4d[wp.uint32] render as:

Return type: wp.array(dtype=<class 'warp._src.types.uint32'>, ndim=4)

This affects any downstream project using Warp array type annotations in Sphinx-documented APIs.

Relevant code

https://github.com/NVIDIA/warp/blob/main/warp/_src/types.py#L4647-L4650

def __repr__(self):
    dtype_str = "Any" if self.dtype is Any else self.dtype  # ← raw class object
    ndim_str = "Any" if self.ndim is Any else self.ndim
    return f"wp.{self._concrete_cls.__name__}(dtype={dtype_str}, ndim={ndim_str})"

[shi-eric]

A fix was deployed in 9be104c