feat(db): Datenmodell, erste Migration und Seed (#003)

Prisma 7.10 mit Postgres-Adapter, 23 Modelle inklusive Rechnungen mit Positionen,
Seed fuer Administrator, Warnregeln und Demo-Daten, Testdatenbank fuer Vitest.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-09-17 20:32:04 +02:00
co-authored by Claude Opus 5
parent 090396f6c0
commit 293bcf4b5a
22 changed files with 4121 additions and 36 deletions
+2
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@@ -4,3 +4,5 @@ coverage
docs
*.md
package-lock.json
src/generated
prisma/migrations