chore: sdk regeneration 2026-04-29

[GregHolmes]

Compatibility

• Restored legacy public aliases for renamed Agent History models and params:
  • AgentV1HistoryContent -> ConversationHistoryMessage
  • AgentV1HistoryFunctionCalls -> FunctionCallHistoryMessage
  • AgentV1SettingsAgentContextMessagesItemContent -> ConversationHistoryMessage
  • AgentV1SettingsAgentContextMessagesItemFunctionCalls -> FunctionCallHistoryMessage
• Restored legacy create-key request aliases:
  • CreateKeyV1RequestOne -> CreateKeyV1Request
  • CreateKeyV1RequestOneParams -> CreateKeyV1RequestParams
• Added compatibility shim modules, package-level re-exports, runtime tests, wire coverage, and targeted mypy coverage so existing imports and typed call sites continue to work.

Other Changes

• Re-applied socket-client manual patches:
  • broad except Exception handling across socket clients
  • optional control-message defaults for send_keep_alive, send_finalize, send_close_stream, send_flush, send_clear, and send_close
  • agent/v1 _sanitize_numeric_types
  • listen/v2 raw send_configure(message: typing.Any) shim and broader response handling
• Added AgentV1InjectAgentMessageBehavior.
• Added ListenV2LanguageHint and language_hint support on Listen V2 connect clients.
• Updated regen docs and .fernignore to preserve the new compatibility shims and regression tests in future regenerations.

Validation

• uv run pytest tests/custom/test_agent_history.py tests/custom/test_compat_aliases.py tests/wire/test_manage_v1_projects_keys.py
• uv run mypy --ignore-missing-imports tests/typecheck/compat_aliases.py
• uv run pytest