Initial commit: React frontend (SLP Software) + AIDLC workflow docs

Co-authored-by: Junie <junie@jetbrains.com>

vite.config.ts

@@ -0,0 +1,14 @@
+/// <reference types="vitest/config" />
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [react()],
+  test: {
+    environment: 'jsdom',
+    globals: true,
+    setupFiles: './src/test/setup.ts',
+    css: true,
+  },
+});