feat(n8n Form Trigger Node): New node (#7130)

Github issue / Community forum post (link here to close automatically):

based on https://github.com/joffcom/n8n-nodes-form-trigger

---------

Co-authored-by: Giulio Andreini <g.andreini@gmail.com>

packages/nodes-base/nodes/Form/interfaces.ts

@@ -0,0 +1,30 @@
+export type FormField = {
+	fieldLabel: string;
+	fieldType: string;
+	requiredField: boolean;
+	fieldOptions?: { values: Array<{ option: string }> };
+	multiselect?: boolean;
+};
+
+export type FormTriggerInput = {
+	isSelect?: boolean;
+	isMultiSelect?: boolean;
+	isInput?: boolean;
+	labbel: string;
+	id: string;
+	errorId: string;
+	type?: 'text' | 'number' | 'date';
+	inputRequired: 'form-required' | '';
+	selectOptions?: string[];
+	multiSelectOptions?: Array<{ id: string; label: string }>;
+};
+
+export type FormTriggerData = {
+	testRun: boolean;
+	validForm: boolean;
+	formTitle: string;
+	formDescription?: string;
+	formSubmittedText?: string;
+	n8nWebsiteLink: string;
+	formFields: FormTriggerInput[];
+};