Update .gitignore to exclude TypeScript build info and add dist directory. Expand README with project overview, technology stack, prerequisites, and instructions for running and testing the application.

src/HSchool.Client/vite.config.ts

@@ -0,0 +1,27 @@
+import { defineConfig } from 'vite';
+
+// Aspire injects SERVER_HTTP / SERVER_HTTPS from the `server` resource reference,
+// so the dev server proxies to whatever port the backend actually got.
+const backend = process.env.SERVER_HTTPS ?? process.env.SERVER_HTTP ?? 'http://localhost:5180';
+
+export default defineConfig({
+  server: {
+    proxy: {
+      '/api': {
+        target: backend,
+        changeOrigin: true,
+        secure: false,
+      },
+      '/ws': {
+        target: backend,
+        changeOrigin: true,
+        secure: false,
+        ws: true,
+      },
+    },
+  },
+  build: {
+    target: 'es2022',
+    sourcemap: true,
+  },
+});