Closes #5122: ArkoudaExtensionArray.__eq__ #5123
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PR Title
Implement elementwise equality (
__eq__) for all Arkouda ExtensionArrays with full pandas complianceSummary
This PR rewrites the
__eq__implementations for ArkoudaArray, ArkoudaStringArray, and ArkoudaCategoricalArray to ensure correct pandas ExtensionArray semantics. It introduces shape checks, scalar broadcasting, support for numpy arrays and Python sequences, and uniform boolean ExtensionArray return types.Motivation
Prior behavior returned raw pdarrays and lacked length checks, causing inconsistent or incorrect behavior in pandas contexts. This update standardizes equality behavior and supports DataFrame filtering and boolean indexing reliably.
What's Included
Why This Matters
Closes #5122: ArkoudaExtensionArray.eq