[Feature Request]: Add Native Data Validation Mechanism to Apache Beam

[asif6544]

What would you like to happen?

Add a native data validation mechanism to Apache Beam that allows developers to define validation rules at the schema or pipeline level, automatically handle invalid records (such as via side outputs or error sinks), and reduce the need for custom validation logic inside DoFns.

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Issue Priority

Priority: 3 (nice-to-have improvement)

Issue Components

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