kert 73017081ef fix(notebooks): stop rendering years as 2,027 — plain_years display cast (closes #643) ...

marimo's data-table viewer formats integer columns with thousands
separators, so int32/int64 year columns (DuckDB SELECT year, registry-
built frames) displayed as "2,027". New conf.display.plain_years casts
year-like integer columns (year, *_year, *_period; autodetected or
explicit, polars + pandas) to strings at the display boundary only —
analysis frames keep integer dtypes, chart encodings (already :O) are
untouched.

Applied at every affected display site: pfs_calcs carrier/SQL result
tables, pfs_reconciliation delta table, cy2026/cy2027 APM-threshold
tables, cms_quality_measures pipeline-result accordions. All five
notebooks re-executed headlessly in the notebooks container
(nb_integration ci-smoke set): pass=5, displayed year values now
serialize as strings.

2026-08-18 10:07:47 -04:00

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