Initial exploration and vitest configuration fixes

Co-authored-by: ahmadawais <960133+ahmadawais@users.noreply.github.com>

Author: Copilot

packages/langbase/vitest.edge.config.js

@@ -1,4 +1,5 @@
 import {defineConfig} from 'vite';
+import path from 'path';
 
 // https://vitejs.dev/config/
 export default defineConfig({
@@ -15,4 +16,9 @@ export default defineConfig({
 			enabled: true,
 		},
 	},
+	resolve: {
+		alias: {
+			'@': path.resolve(__dirname, './src'),
+		},
+	},
 });

packages/langbase/vitest.node.config.js

@@ -1,4 +1,5 @@
 import {defineConfig} from 'vite';
+import path from 'path';
 
 // https://vitejs.dev/config/
 export default defineConfig({
@@ -15,4 +16,9 @@ export default defineConfig({
 			enabled: true,
 		},
 	},
+	resolve: {
+		alias: {
+			'@': path.resolve(__dirname, './src'),
+		},
+	},
 });

packages/langbase/vitest.ui.react.config.js

@@ -1,5 +1,6 @@
 import react from '@vitejs/plugin-react';
 import {defineConfig} from 'vite';
+import path from 'path';
 
 // https://vitejs.dev/config/
 export default defineConfig({
@@ -10,4 +11,9 @@ export default defineConfig({
 		include: ['rsc/**/*.ui.test.ts{,x}'],
 		exclude: ['**/node_modules/**'],
 	},
+	resolve: {
+		alias: {
+			'@': path.resolve(__dirname, './src'),
+		},
+	},
 });