Flask Nova 0.2.x adds async tasks, Pydantic validation, and OpenAPI 3.0 support

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Flask Nova 0.2.x is a new release of the Flask extension designed to simplify building enterprise-grade APIs by filling gaps in the standard framework. The update introduces two async task offloaders, to_thread() for blocking I/O and to_process() for CPU-bound work, enabling asynchronous execution within Flask routes. Pydantic Field definitions can now be applied directly to path and query parameters, allowing developers to enforce constraints such as value ranges, string lengths, and regex patterns. OpenAPI 3.0 support has been enhanced with automatic Blueprint tag grouping, additional route decorator metadata options, and explicit multi-file upload handling. The release also improves observability through RFC 7807 problem details, ANSI-colored JSON logging, and automatic trace ID injection into HTTP exception responses.

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