v1.0

• Add full lexicon schema validation for records and XRPC method parameters, input, and output. Includes primitive and object types, refs and unions, string formats, type-specific constraints, etc.
• Dependencies: switch from dag-cbor to libipld, for performance.
• client:
  • Add new decode kwarg to subscription methods to control whether DAG-CBOR messages should be decoded into native dicts for header and payload.
• flask_server: add new top-level subscribers attr that tracks clients connected (subscribed) to each event stream.
• server:
  • Add status param to Redirect.