Replace traditional switch statements with Java 14 switch expressions across
vector store filter converters and related components. This change improves
code quality in our filter expression handling for Azure, Milvus, Redis,
Typesense and Weaviate implementations.
The switch expressions eliminate fall-through behavior, enforce exhaustive
pattern matching at compile time, and provide a more direct way to return
values. This makes the filter conversion logic more robust and maintainable.
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