feat: Add AI tool building capabilities (#7336)

Github issue / Community forum post (link here to close automatically):
https://community.n8n.io/t/langchain-memory-chat/23733

---------

Signed-off-by: Oleg Ivaniv <me@olegivaniv.com>
Co-authored-by: Oleg Ivaniv <me@olegivaniv.com>
Co-authored-by: Val <68596159+valya@users.noreply.github.com>
Co-authored-by: Alex Grozav <alex@grozav.com>
Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>
Co-authored-by: Deborah <deborah@starfallprojects.co.uk>
Co-authored-by: Jesper Bylund <mail@jesperbylund.com>
Co-authored-by: Jon <jonathan.bennetts@gmail.com>
Co-authored-by: Michael Kret <88898367+michael-radency@users.noreply.github.com>
Co-authored-by: Giulio Andreini <andreini@netseven.it>
Co-authored-by: Mason Geloso <Mason.geloso@gmail.com>
Co-authored-by: Mason Geloso <hone@Masons-Mac-mini.local>
Co-authored-by: Mutasem Aldmour <mutasem@n8n.io>

packages/@n8n/chat/.storybook/main.ts

@@ -0,0 +1,27 @@
+import type { StorybookConfig } from '@storybook/vue3-vite';
+
+import { join, dirname } from 'path';
+
+/**
+ * This function is used to resolve the absolute path of a package.
+ * It is needed in projects that use Yarn PnP or are set up within a monorepo.
+ */
+function getAbsolutePath(value: string): any {
+	return dirname(require.resolve(join(value, 'package.json')));
+}
+const config: StorybookConfig = {
+	stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
+	addons: [
+		getAbsolutePath('@storybook/addon-links'),
+		getAbsolutePath('@storybook/addon-essentials'),
+		getAbsolutePath('@storybook/addon-interactions'),
+	],
+	framework: {
+		name: getAbsolutePath('@storybook/vue3-vite'),
+		options: {},
+	},
+	docs: {
+		autodocs: 'tag',
+	},
+};
+export default config;

packages/@n8n/chat/.storybook/preview.scss

@@ -0,0 +1,4 @@
+html, body, #storybook-root, #n8n-chat {
+	width: 100%;
+	height: 100%;
+}

packages/@n8n/chat/.storybook/preview.ts

@@ -0,0 +1,16 @@
+import type { Preview } from '@storybook/vue3';
+import './preview.scss';
+
+const preview: Preview = {
+	parameters: {
+		actions: { argTypesRegex: '^on[A-Z].*' },
+		controls: {
+			matchers: {
+				color: /(background|color)$/i,
+				date: /Date$/,
+			},
+		},
+	},
+};
+
+export default preview;