migration/transform_customers.py builds `customers` + `customer_legacy_refs`
from staged DATGRAL, implementing the reconciliation rules: utilities DATGRAL
is the customer master; insurance DATGRAL folds in via its num_util
cross-reference (matches enrich the master with the ID-document fields
utilities lacks); COBRO3 excluded as a charge batch. Every legacy row gets a
provenance ref, so the load is auditable and idempotent (truncate+rebuild).
Loaded and validated against the dev DB (192.168.4.212:3307):
1682 customers (1172 utilities master + 510 insurance-only)
2242 legacy refs (1172 utilities + 1070 insurance) — 0 orphans
560 insurance rows linked via num_util, 0 broken cross-refs
542 merged identities spanning both business lines
Spot-checked a merged customer: single record carrying utilities fee +
insurance passport/ID enriched in, both provenance refs present.
RESUME.md: mark customers done, record dev-DB infra + the pnpm/npm caveat.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Next.js + NestJS + Prisma (MySQL) monorepo replacing the legacy PHP
internal app. Includes a session-based auth module with Argon2 password
hashing and global input validation (replacing the old app's SQL
injection and plaintext password comparison), the full target Prisma
schema for customers/insurance/utilities/shared ledger/bank register,
Docker Compose + Dockerfiles, and an Access-to-staging migration
pipeline (migration/) already run against the real source databases.
See PLAN.md and RESUME.md for the full architecture and session history.
rmancinasandClaude Opus 4.8