- Define canonical `tcp` and `unix` tuple shapes while retaining
legacy pair aliases as the emitted `UnwrappedAddress`.
- Dispatch tagged tuple/list payloads explicitly, accept `uds` as a
Unix input alias, and preserve legacy TCP, UDS, and native IPv6
readers.
- Cover tag aliases, msgpack-style lists, legacy payloads, and IPv6
socket addresses before switching writers.
Prompt-IO: ai/prompt-io/opencode/20260820T033107Z_ba07e09d_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))