fix(build): split vitest config from vite build

Keep production vite.config.ts free of vitest/config imports so Netlify can load the build config without CJS-to-ESM failures.

Move test-only settings into vitest.config.ts while preserving the shared Vite config for unit tests.

Signed-off-by: Rishabh060105 <rishabhj2005@email.com>

Author: Rishabh060105

vite.config.ts

@@ -1,10 +1,10 @@
-import { defineConfig as defineViteConfig, mergeConfig } from "vite";
-import { defineConfig as defineVitestConfig, configDefaults } from "vitest/config";
+import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
 import { nodePolyfills } from "vite-plugin-node-polyfills";
 import { visualizer } from "rollup-plugin-visualizer";
+
 // https://vitejs.dev/config/
-const viteConfig = defineViteConfig({
+export default defineConfig({
   plugins: [nodePolyfills(), react(), visualizer({
     emitFile: true,
     filename: "stats.html",
@@ -28,30 +28,3 @@ const viteConfig = defineViteConfig({
     needsInterop: ['@accordproject/template-engine'],
   },
 });
-
-
-// https://vitest.dev/config/
-const vitestConfig = defineVitestConfig({  test: {
-    globals: true,
-    environment: "jsdom",
-    setupFiles: "./src/utils/testing/setup.ts",
-    exclude: [...configDefaults.exclude, "**/e2e/**"],
-    server: {
-      deps: {
-        inline: ["monaco-editor"],
-      },
-    },
-    coverage: {
-      provider: 'v8',
-      reporter: ['text'],
-      include: ['src/**/*.{ts,tsx}'],
-    },
-  },
-  resolve: {
-    alias: process.env.VITEST ? {
-      "monaco-editor": "monaco-editor/esm/vs/editor/editor.api",
-    } : {},
-  },
-});
-
-export default mergeConfig(viteConfig, vitestConfig);

vitest.config.ts

@@ -0,0 +1,28 @@
+import { mergeConfig } from "vite";
+import { configDefaults, defineConfig } from "vitest/config";
+import viteConfig from "./vite.config";
+
+// https://vitest.dev/config/
+export default mergeConfig(viteConfig, defineConfig({
+  test: {
+    globals: true,
+    environment: "jsdom",
+    setupFiles: "./src/utils/testing/setup.ts",
+    exclude: [...configDefaults.exclude, "**/e2e/**"],
+    server: {
+      deps: {
+        inline: ["monaco-editor"],
+      },
+    },
+    coverage: {
+      provider: "v8",
+      reporter: ["text"],
+      include: ["src/**/*.{ts,tsx}"],
+    },
+  },
+  resolve: {
+    alias: process.env.VITEST ? {
+      "monaco-editor": "monaco-editor/esm/vs/editor/editor.api",
+    } : {},
+  },
+}));