Import project configuration: vitest.config.ts

Import the existing local project snapshot. This commit organizes existing files; it does not represent newly developed functionality.

vitest.config.ts

@@ -0,0 +1,18 @@
+import { defineConfig } from "vitest/config";
+import react from "@vitejs/plugin-react";
+
+export default defineConfig({
+  plugins: [react()],
+  test: {
+    include: ["tests/unit/**/*.{test,spec}.{ts,tsx}"],
+    environment: "jsdom",
+    setupFiles: ["./tests/unit/setup.ts"],
+    globals: true,
+    css: true,
+  },
+  resolve: {
+    alias: {
+      "@": "/srv/CoaxysPanel/src",
+    },
+  },
+});