- recompute datetime and delta cols after final timestamp ordering
- detect only positive sample-step gaps
- document inclusive null grouping with an updated visual map
- check all small null layouts against an independent test oracle
- honor selected null cols and reject discontinuous frame indexes
- share exact null grouping across NumPy and Polars
Prompt-IO: ai/prompt-io/opencode/20260722T001357Z_16f3cd6f_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
Gud Boi