Replace the address-unpacking branch selector with `piker_pin` and
lock the published branch at b64c89f0. Verify the installed Git
revision without a local-source `PYTHONPATH` override.
Bound Polars below 2.0 and resolve polars/runtime 1.44.2, the latest
non-yanked stable 1.x release, instead of taking a major upgrade as
part of the Tractor landing. This resolves the universal lock where
retaining the older 1.36 versions was rejected for a Windows target.
The scoped install changed only Tractor; 14 offline logger/startup
cases passed with the existing Polars 1.36 installation. A full sync
and Polars 1.44.2 data-path qualification remain outstanding.
Prompt-IO: ai/prompt-io/opencode/20261021T224421Z_507c75c6_piker_pin_prompt_io.md
(this patch was generated in some part by `opencode` using
`gpt-6.1-sol` (`openai`))
Gud Boi