default buffer logic

[d-v-b]

This PR builds on #3638 to add routines to the store ABC, and thereby all other stores, for handling additional types for the prototype parameter passed to store.get and the methods that call get. This change makes it easier to use store methods without unnecessary imports.

The type of prototype is widened to type[Buffer] | BufferPrototype | None. type[Buffer] | BufferPrototype is compacted to the type alias BufferLike.

When prototype is type[Buffer], the store will use that class directly. Since the stores never use the BufferPrototype.nd_buffer, passing a Buffer class should be preferred over using BufferPrototype.

When prototype is None, the store class retrieves a Buffer class by calling its _get_default_buffer_class method. The default implementation returns the default_buffer_prototype which makes our ABC less abstract but keeps these changes non-breaking.

[codecov]

Codecov Report

❌ Patch coverage is 60.89744% with 61 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.00%. Comparing base (acdd892) to head (68a449e).

Files with missing lines	Patch %	Lines
src/zarr/storage/_fsspec.py	0.00%	17 Missing ⚠️
src/zarr/abc/store.py	42.85%	12 Missing ⚠️
src/zarr/testing/store.py	69.69%	10 Missing ⚠️
src/zarr/storage/_local.py	75.00%	7 Missing ⚠️
src/zarr/storage/_memory.py	70.83%	7 Missing ⚠️
src/zarr/storage/_common.py	25.00%	3 Missing ⚠️
src/zarr/storage/_obstore.py	81.25%	3 Missing ⚠️
src/zarr/storage/_logging.py	0.00%	1 Missing ⚠️
src/zarr/storage/_wrapper.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3644      +/-   ##
==========================================
+ Coverage   60.90%   61.00%   +0.10%     
==========================================
  Files          86       86              
  Lines       10174    10285     +111     
==========================================
+ Hits         6196     6274      +78     
- Misses       3978     4011      +33     

Files with missing lines	Coverage Δ
src/zarr/experimental/cache_store.py	100.00% <100.00%> (ø)
src/zarr/storage/_zip.py	72.98% <100.00%> (+1.13%)	⬆️
src/zarr/storage/_logging.py	61.94% <0.00%> (ø)
src/zarr/storage/_wrapper.py	43.58% <0.00%> (ø)
src/zarr/storage/_common.py	66.00% <25.00%> (ø)
src/zarr/storage/_obstore.py	62.28% <81.25%> (+1.45%)	⬆️
src/zarr/storage/_local.py	72.10% <75.00%> (+1.51%)	⬆️
src/zarr/storage/_memory.py	61.34% <70.83%> (+4.90%)	⬆️
src/zarr/testing/store.py	74.92% <69.69%> (-0.08%)	⬇️
src/zarr/abc/store.py	37.73% <42.85%> (+0.85%)	⬆️
... and 1 more

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.