feat: initial prototype

vitest.config.ts

@@ -0,0 +1,18 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    coverage: {
+      provider: "istanbul",
+      reporter: ["text", "html"],
+      all: true,
+      allowExternal: true,
+      thresholds: {
+        lines: 100,
+        statements: 100,
+        branches: 100,
+        functions: 100,
+      },
+    },
+  },
+});