Fix Vite serving errors for symlinked node_modules

Dynamically detect when node_modules is a symlink and add the real
path to Vite's server.fs.allow list. This resolves dev toolbar errors
in environments with symlinked dependencies while remaining a no-op
when node_modules is not symlinked. Add esbuild-wasm as a dependency.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: GeekTrainer

app/client/astro.config.mjs

@@ -0,0 +1,31 @@
+// @ts-check
+process.env.ASTRO_TELEMETRY_DISABLED = '1';
+import { defineConfig } from 'astro/config';
+import tailwindcss from '@tailwindcss/vite';
+import node from '@astrojs/node';
+import fs from 'node:fs';
+import path from 'node:path';
+
+// Allow Vite to serve files from the real node_modules path when it is symlinked
+const nodeModulesPath = path.resolve('node_modules');
+const realNodeModulesPath = fs.realpathSync(nodeModulesPath);
+const fsAllow = ['..'];
+if (realNodeModulesPath !== nodeModulesPath) {
+  fsAllow.push(path.dirname(realNodeModulesPath));
+}
+
+// https://astro.build/config
+export default defineConfig({
+  output: 'server',
+  vite: {
+    plugins: [tailwindcss()],
+    server: {
+      fs: {
+        allow: fsAllow,
+      },
+    },
+  },
+  adapter: node({
+    mode: 'standalone'
+  }),
+});