Workstream 2: Datenbankschema & Migrationen (Phase 1)

Vollständiges Drizzle-Schema (alle Tabellen/Enums/Indizes aus Spec §6):
brigades, users, merkmale(+optionen), vehicle_templates(+merkmale,+aliasse),
equipment_categories(+merkmale), vehicles, equipment, merkmal_values (EAV mit
typisierten Spalten + 4 Indizes), login_attempts, audit_log. Einzige initiale
Migration 0000 (idempotent: enum-DO-Blöcke, IF NOT EXISTS), scripts/migrate.ts,
db:* npm-Scripts.

Verifiziert (offline): tsc --noEmit OK; drizzle-kit check 'Everything's fine';
Migration 7 CREATE TYPE / 14 CREATE TABLE / 17 CREATE INDEX / 32 IF NOT EXISTS.
DEFERRED (kein Postgres im Sandbox — Ursache des vorherigen Stalls): live
db:migrate und DB-abhängige Schema-Tests; laufen in CI/Deploy mit Postgres.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

package.json

@@ -12,7 +12,9 @@
     "test": "vitest run",
     "test:watch": "vitest",
     "db:generate": "drizzle-kit generate",
-    "db:migrate": "drizzle-kit migrate",
+    "db:migrate": "tsx scripts/migrate.ts",
+    "db:push": "drizzle-kit push",
+    "db:studio": "drizzle-kit studio",
     "db:check": "drizzle-kit check"
   },
   "dependencies": {
@@ -47,6 +49,7 @@
     "prettier": "^3.5.2",
     "prettier-plugin-tailwindcss": "^0.6.11",
     "tailwindcss": "^3.4.17",
+    "tsx": "^4.19.2",
     "typescript": "^5.7.3",
     "vitest": "^3.0.7"
   }