Add document filters to MCP and n8n APIs

Align MCP and n8n document listing endpoints with the GraphQL console
API so every document filter is available across all three interfaces.

MCP:
- listDocuments: add status filter, default to ACTIVE
- listDocumentVersions: add statuses filter
- DocumentOrderField: add UPDATED_AT

n8n:
- document getAll: add query, documentTypes, classifications, status filters (default ACTIVE)
- document getAllVersions: add statuses filter
- document getAllSignatures: add states and activeContract filters

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

packages/n8n-node/nodes/Probo/actions/document/getAllVersions.operation.ts

@@ -60,6 +60,33 @@ export const description: INodeProperties[] = [
 		default: 50,
 		description: 'Max number of results to return',
 	},
+	{
+		displayName: 'Filters',
+		name: 'filters',
+		type: 'collection',
+		placeholder: 'Add Filter',
+		default: {},
+		displayOptions: {
+			show: {
+				resource: ['document'],
+				operation: ['getAllVersions'],
+			},
+		},
+		options: [
+			{
+				displayName: 'Statuses',
+				name: 'statuses',
+				type: 'multiOptions',
+				default: [],
+				description: 'Filter by version status',
+				options: [
+					{ name: 'Draft', value: 'DRAFT' },
+					{ name: 'Pending Approval', value: 'PENDING_APPROVAL' },
+					{ name: 'Published', value: 'PUBLISHED' },
+				],
+			},
+		],
+	},
 ];
 
 export async function execute(
@@ -69,12 +96,18 @@ export async function execute(
 	const documentId = this.getNodeParameter('documentId', itemIndex) as string;
 	const returnAll = this.getNodeParameter('returnAll', itemIndex) as boolean;
 	const limit = this.getNodeParameter('limit', itemIndex, 50) as number;
+	const filters = this.getNodeParameter('filters', itemIndex, {}) as IDataObject;
+
+	const filter: IDataObject = {};
+	if ((filters.statuses as string[])?.length) filter.statuses = filters.statuses;
+
+	const hasFilter = Object.keys(filter).length > 0;
 
 	const query = `
-		query GetDocumentVersions($documentId: ID!, $first: Int, $after: CursorKey) {
+		query GetDocumentVersions($documentId: ID!, $first: Int, $after: CursorKey${hasFilter ? ', $filter: DocumentVersionFilter' : ''}) {
 			node(id: $documentId) {
 				... on Document {
-					versions(first: $first, after: $after) {
+					versions(first: $first, after: $after${hasFilter ? ', filter: $filter' : ''}) {
 						edges {
 							node {
 								id
@@ -101,10 +134,13 @@ export async function execute(
 		}
 	`;
 
+	const variables: IDataObject = { documentId };
+	if (hasFilter) variables.filter = filter;
+
 	const versions = await proboApiRequestAllItems.call(
 		this,
 		query,
-		{ documentId },
+		variables,
 		(response) => {
 			const data = response?.data as IDataObject | undefined;
 			const node = data?.node as IDataObject | undefined;