Limitations
- Parquet I/O is deferred
- bool-heavy regrouping and join-output paths are still narrower than the numeric and string paths
from_columns/emptycolumn order should not be treated as parity-stable until Coral stops depending on rawDictentry order for those constructors- the invalid-C type-collapse and Phase 0e RISC DAG panic that previously blocked
stripped Frame/GroupBy/Join bare builds are both fixed as of
chelis v0.1.19; build, link, and run are clean