feat: add Vite and Vitest configuration files for build and testing setup

Author: hebertcisco

vite.config.ts

@@ -0,0 +1,46 @@
+import { defineConfig } from "vite";
+import { resolve } from "pathe";
+import { readFileSync, writeFileSync } from "fs";
+import pkg from "./package.json";
+
+const external = [
+  /^node:/,
+  ...Object.keys(pkg.dependencies ?? {}),
+  ...Object.keys(pkg.peerDependencies ?? {}),
+];
+
+function preserveCliShebang(): import("vite").Plugin {
+  return {
+    name: "preserve-cli-shebang",
+    closeBundle() {
+      const cliPath = resolve(__dirname, "dist/cli.js");
+      const content = readFileSync(cliPath, "utf8");
+      if (!content.startsWith("#!/usr/bin/env node")) {
+        writeFileSync(cliPath, `#!/usr/bin/env node\n${content}`);
+      }
+    },
+  };
+}
+
+export default defineConfig({
+  plugins: [preserveCliShebang()],
+  build: {
+    ssr: true,
+    outDir: "dist",
+    emptyOutDir: true,
+    target: "node18",
+    sourcemap: true,
+    rollupOptions: {
+      input: {
+        cli: resolve(__dirname, "src/cli.ts"),
+        index: resolve(__dirname, "src/index.ts"),
+      },
+      external,
+      output: {
+        format: "cjs",
+        entryFileNames: "[name].js",
+        exports: "auto",
+      },
+    },
+  },
+});

vitest.config.ts

@@ -0,0 +1,17 @@
+import { defineConfig } from "vitest/config";
+import { resolve } from "pathe";
+
+export default defineConfig({
+  test: {
+    environment: "node",
+    include: ["tests/**/*.test.ts"],
+    setupFiles: ["tests/helpers/setup.ts"],
+    testTimeout: 30000,
+    restoreMocks: true,
+  },
+  resolve: {
+    alias: {
+      "@": resolve(__dirname, "src"),
+    },
+  },
+});