TUW-GEO / ascat / 28500847048

coverage: 46.92% (+0.6%) from 46.278%
28500847048

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sebhahn 
Refactor and harden ascat.cf_array; add unit tests

Fix latent bugs, clean up the CF discrete-geometry array classes, and
complete the conversion matrix, all covered by a new test module.

Bug fixes:
- Fix CFDiscreteGeom.array_type base property (defined without self, so it
  raised TypeError instead of NotImplementedError).
- Resolve the sample dimension for OrthoMultiTimeseriesArray and cache the
  array type (set_sample_dimension previously operated on None).
- Raise a clear ValueError from RaggedArray.to_indexed_ragged/
  to_contiguous_ragged/to_point_array instead of silently returning None
  for an unsupported array type.
- point_to_indexed no longer mutates the caller's dataset (use assign).
- Use resample period "1ME" instead of the deprecated "1M" (pandas 2.2).
- Type-hint resample_method as typing.Callable, not the builtin callable.

Refactor:
- Replace the side-effecting array_type property with an explicit
  _resolve() called once from __init__; array_type is now a plain getter.
- Remove the static-method wrappers that only forwarded to the module-level
  conversion functions.
- Move the duplicated timeseries_id property to the base class.
- Centralize array-type strings as module constants (POINT, INDEXED,
  CONTIGUOUS, ORTHOMULTI_TS).
- Dispatch cf_array_class via a dict and add a CFDiscreteGeom.from_dataset
  factory classmethod.

Features:
- Add OrthoMultiTimeseriesArray.to_point_array/to_indexed_ragged/
  to_contiguous_ragged so point <-> ragged <-> orthomulti conversions are
  symmetric.

Tests:
- Add tests/test_cf_array.py covering type detection, class dispatch, all
  conversions and round-trips, non-mutation, and error handling.

81 of 84 new or added lines in 1 file covered. (96.43%)

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93.0
/src/ascat/cf_array.py


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