pgx v5 returns PostgreSQL numeric as pgtype.Numeric (not float64)
when scanning into interface{}. The reconcile method now reads line
data directly via SQL with ::float8 casts instead of ORM Read().
Verified end-to-end: Invoice receivable (1000) + Payment credit (-1000)
→ partial_reconcile created → residuals zeroed → full_reconcile created
→ invoice payment_state = 'paid'.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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