Monorepo skeleton, Prisma schema, core domain and services with tests

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

packages/services/vitest.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    globalSetup: ['./test/global-setup.ts'],
+    // тесты делят одну БД — запускаем последовательно
+    fileParallelism: false,
+    testTimeout: 20_000,
+    hookTimeout: 60_000,
+  },
+});