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>

cypress/composables/ndv.ts

@@ -0,0 +1,73 @@
+/**
+ * Getters
+ */
+
+export function getCredentialSelect(eq = 0) {
+	return cy.getByTestId('node-credentials-select').eq(eq);
+}
+
+export function getCreateNewCredentialOption() {
+	return cy.getByTestId('node-credentials-select-item-new');
+}
+
+export function getBackToCanvasButton() {
+	return cy.getByTestId('back-to-canvas');
+}
+
+export function getExecuteNodeButton() {
+	return cy.getByTestId('node-execute-button');
+}
+
+export function getParameterInputByName(name: string) {
+	return cy.getByTestId(`parameter-input-${name}`);
+}
+
+export function getInputPanel() {
+	return cy.getByTestId('input-panel');
+}
+
+export function getMainPanel() {
+	return cy.getByTestId('node-parameters');
+}
+
+export function getOutputPanel() {
+	return cy.getByTestId('output-panel');
+}
+
+export function getOutputPanelDataContainer() {
+	return getOutputPanel().getByTestId('ndv-data-container');
+}
+
+export function getOutputPanelTable() {
+	return getOutputPanelDataContainer().get('table');
+}
+
+/**
+ * Actions
+ */
+
+export function openCredentialSelect(eq = 0) {
+	getCredentialSelect(eq).click();
+}
+
+export function setCredentialByName(name: string) {
+	openCredentialSelect();
+	getCredentialSelect().contains(name).click();
+}
+
+export function clickCreateNewCredential() {
+	openCredentialSelect();
+	getCreateNewCredentialOption().click();
+}
+
+export function clickGetBackToCanvas() {
+	getBackToCanvasButton().click();
+}
+
+export function clickExecuteNode() {
+	getExecuteNodeButton().click();
+}
+
+export function setParameterInputByName(name: string, value: string) {
+	getParameterInputByName(name).clear().type(value);
+}