feat: update client package configuration and dependencies

- Added new dependencies for Rollup plugins and updated existing ones in package.json and package-lock.json.
- Introduced a new Rollup configuration file for building the client package.
- Refactored build scripts to include a dedicated build command for the client.
- Updated TypeScript configuration for improved module resolution and type declaration output.
- Integrated a Toast component from the client package into the main App component.

packages/client/rollup.config.js

@@ -0,0 +1,56 @@
+// ESM bundler config for React components
+import typescript from 'rollup-plugin-typescript2';
+import resolve from '@rollup/plugin-node-resolve';
+import pkg from './package.json';
+import peerDepsExternal from 'rollup-plugin-peer-deps-external';
+import commonjs from '@rollup/plugin-commonjs';
+import replace from '@rollup/plugin-replace';
+import terser from '@rollup/plugin-terser';
+import alias from '@rollup/plugin-alias';
+import { fileURLToPath } from 'url';
+import { dirname, resolve as pathResolve } from 'path';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const plugins = [
+  peerDepsExternal(),
+  alias({
+    entries: [{ find: '~', replacement: pathResolve(__dirname, 'src') }],
+  }),
+  resolve({
+    extensions: ['.js', '.jsx', '.ts', '.tsx'],
+  }),
+  replace({
+    'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'production'),
+    preventAssignment: true,
+  }),
+  commonjs(),
+  typescript({
+    tsconfig: './tsconfig.json',
+    useTsconfigDeclarationDir: true,
+    clean: true,
+  }),
+  terser(),
+];
+
+export default {
+  input: 'src/index.ts',
+  output: [
+    {
+      file: pkg.main,
+      format: 'cjs',
+      sourcemap: true,
+      exports: 'named',
+    },
+    {
+      file: pkg.module,
+      format: 'esm',
+      sourcemap: true,
+      exports: 'named',
+    },
+  ],
+  external: [...Object.keys(pkg.peerDependencies || {}), 'react/jsx-runtime'],
+  preserveSymlinks: true,
+  plugins,
+};