Adopt the array API standard: foundation + CRPS pilot#133

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frazane wants to merge 26 commits into

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array-api-adoption

Commits on Jun 6, 2026

Commits on Jun 7, 2026

Migrate CRPS ensemble-estimator core to the array-api xp namespace
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Migrate CRPS closed-form scores to the array-api xp namespace
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Coerce python scalars in elementwise namespace ops so torch sqrt/log work
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Migrate CRPS ensemble-family public functions to array-api dispatch
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Migrate CRPS closed-form public wrappers to array-api dispatch
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Fix comb to return 0 for k outside [0, n], matching scipy.special.comb
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Compute censored-distribution tail masses via xp so clogistic/cnormal/ct honour the input framework
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Exercise CRPS tests with native arrays and assert backend inference
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Preserve torch grad in namespace asarray, add namespace size, stop gev collapsing to float
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Rewrite user-guide backend section for inferred array frameworks
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Exercise weighted-CRPS tests with native arrays and assert backend inference
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Drop unused array-api-extra dep, fix stale backend docstrings, silence comb divide-by-zero, remove dead test
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