BOHA b51ea2505e feat(db): stock CHECK constraints + audit_logs DATETIME (2038 fix) ...

Migration 20260612234500: CHECK (quantity >= 0) on sklad_batches and
sklad_item_locations — the DB itself now rejects negative stock, so a
future C2-class bug (cumulative decrements driving a batch negative and
silently vanishing from totals) becomes a loud error instead of hidden
corruption. All three databases verified clean of negative rows before
the migration.

audit_logs.created_at TIMESTAMP(0) -> DATETIME(0): TIMESTAMP dies in 2038
and converts through the session timezone; existing wall times preserved
by the MODIFY.

Pinned by db-constraints.test.ts (4 tests, each watched fail pre-migration:
negative insert/update/location all succeeded before, 2098 audit timestamp
was rejected before).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-06-12 23:56:56 +02:00

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