Patch/uxarray

[fluidnumerics-joe]

• [ X ] Chose the correct base branch (main for v3 changes, v4-dev for v4 changes)

This PR brings in a couple patches uncovered during testing/development of examples with the new v4 field and fieldset.

[fluidnumerics-joe]

@VeckoTheGecko - Regarding the scope of this PR : I really just want the tests/v4 to run without error; I got a bit sloppy on the final cleanup in #1946 .

• FieldSet.__init__ was failing due to an incorrect data type required for the grid input in Field.__init__
• spatial hash creation, which occurs during Field.__init__ was throwing a segmentation fault with python 3.13
• When adding fields to a fieldset, the previously deleted Fieldset._gridset_size was being incremented which led to failure.

Resolving these now has the tests/v4 passing.

[fluidnumerics-joe]

I think it'd be good to merge in #1983 before this one

[VeckoTheGecko]

I think it'd be good to merge in #1983 before this one

Done

[VeckoTheGecko]

Regarding the scope of this PR : I really just want the tests/v4 to run without error

Gotcha, that sounds good. I think we also need to fix a typo in environment.yml

-  - uxaray>=2025.3.0
+  - uxarray>=2025.3.0

[fluidnumerics-joe]

I see that in #1982 . Let's get #1982 and #1983 in and i'll update this branch

[VeckoTheGecko]

I see that in #1982 . Let's get #1982 and #1983 in and i'll update this branch

Oh yes, I forgot I put up #1982 . I've put #1982 and #1983 through now as well as updated this branch (there was some CI finagling with the Python 3.13 stuff that I also needed to sort out).

Should be up to date now