Setup initial project

packages/api/vitest.config.ts

@@ -0,0 +1,29 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'node',
+    include: ['src/**/*.test.ts'],
+    coverage: {
+      provider: 'v8',
+      enabled: false, // enable via --coverage flag or test:cov script
+      include: ['src/**/*.ts'],
+      exclude: [
+        'src/**/*.test.ts',
+        'src/scripts/**',
+        'src/common/types.ts', // declaration merging only — no runtime logic
+      ],
+      reporter: ['text', 'lcov', 'json-summary', 'html'],
+      reportsDirectory: './coverage',
+      thresholds: {
+        lines: 100,
+        functions: 100,
+        branches: 90,
+        statements: 100,
+      },
+    },
+    testTimeout: 10_000,
+    hookTimeout: 30_000,
+  },
+});