chore: sdk regeneration 2026-04-20

[GregHolmes]

Summary

• regenerate the Python SDK from the latest API specs using the updated Fern toolchain
• keep the new generated Listen v2 Configure flow and typed ConfigureSuccess response
• re-apply only the manual patches that are still required after regeneration
• remove frozen patches that Fern now generates correctly
• align CI and docs with the generated Python 3.10+ package metadata

Kept From Generator

• listen/v2 send_configure now sends a typed ListenV2Configure model
• Listen v2 socket responses now include ListenV2ConfigureSuccess
• latest generated changes across HTTP clients, models, tests, and wiremock fixtures
• generated package metadata now declares Python 3.10+ support

Manual Patches Re-Applied

• broaden socket client exception handling to except Exception to preserve custom transport compatibility
• restore optional no-payload defaults for websocket control methods so callers do not need to construct empty message objects
• restore _sanitize_numeric_types in agent/v1/socket_client.py for integer fields the API still rejects as floats

Manual Patches Removed

• remove the three frozen float -> int type fixes in listen response models since Fern now generates them correctly
• remove the frozen construct_type(type_=..., object_=...) socket-client patch since Fern now generates the correct keyword-call form

Breaking Changes

• listen/v2 send_configure now expects a ListenV2Configure model instead of accepting arbitrary payloads such as raw dicts or pre-serialized JSON strings
• generated package metadata now targets Python 3.10+ instead of Python 3.8+
• this is intentional for the upcoming major version

CI And Docs

• update workflow matrices to test supported Python versions only (3.10 through 3.13)
• update README and CONTRIBUTING to reflect Python 3.10+ support

Validation

• pytest (170 passed)
• ruff check src
• mypy src