* feat(invoices): add column sorting and row-level status styling to invoice list
Client-side sorting on number, customer, due date, amount and status with
Swedish collation, null-last ordering and stable date/id tie-breaks. Status
chips move to the shared RowStatus descriptor so normal states stay muted and
exceptions carry semantic color. Invoice fetch now pages past the PostgREST
1000-row cap via fetchAllRows so sorting covers the full list.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* test(invoices): make rounded-amount sort assertions non-degenerate
Distinct rounded totals now prove the comparator orders by displayed value;
the rounded tie case is kept as an explicit tie-breaker test since integer
rounding is monotonic and can only create ties, never reorder.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
