Add risk assessment boundary model

Introduce RiskAssessmentBoundary as a first-class, self-nesting entity that
groups nodes within a risk assessment scope, and thread it through every
surface.

- coredata: new risk_assessment_boundaries table + migration, boundary_id on
  nodes, self-referential parent_boundary_id, entity type registration
- riskmanagement: boundary CRUD service methods, boundary_id wiring on node
  create/update, scope-membership and self-parent validation, nested-subgraph
  Mermaid rendering
- IAM: core:risk-assessment-boundary:{get,list,create,update,delete} actions
  and viewer/auditor read policies
- console GraphQL: RiskAssessmentBoundary type, connection, order enum, CRUD
  mutations, boundaries field on scope, boundaryId on nodes
- CLI: risk-assessment boundary command group and --boundary-id on nodes
- MCP: boundary tools and boundary_id on node tools
- n8n: boundary operations and boundary fields on node operations
- console UI: boundary list/create/edit, boundary selector on nodes, diagram
  refetch on boundary changes

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

packages/n8n-node/nodes/Probo/actions/riskAssessment/getAllBoundaries.operation.ts

@@ -0,0 +1,115 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData, IDataObject } from 'n8n-workflow';
+import { proboApiRequestAllItems } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Scope ID',
+		name: 'scopeId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['riskAssessment'],
+				operation: ['getAllBoundaries'],
+			},
+		},
+		default: '',
+		description: 'The ID of the scope',
+		required: true,
+	},
+	{
+		displayName: 'Return All',
+		name: 'returnAll',
+		type: 'boolean',
+		displayOptions: {
+			show: {
+				resource: ['riskAssessment'],
+				operation: ['getAllBoundaries'],
+			},
+		},
+		default: false,
+		description: 'Whether to return all results or only up to a given limit',
+	},
+	{
+		displayName: 'Limit',
+		name: 'limit',
+		type: 'number',
+		displayOptions: {
+			show: {
+				resource: ['riskAssessment'],
+				operation: ['getAllBoundaries'],
+				returnAll: [false],
+			},
+		},
+		typeOptions: {
+			minValue: 1,
+		},
+		default: 50,
+		description: 'Max number of results to return',
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const scopeId = this.getNodeParameter('scopeId', itemIndex) as string;
+	const returnAll = this.getNodeParameter('returnAll', itemIndex) as boolean;
+	const limit = this.getNodeParameter('limit', itemIndex, 50) as number;
+
+	const query = `
+		query GetBoundaries($scopeId: ID!, $first: Int, $after: CursorKey) {
+			node(id: $scopeId) {
+				... on RiskAssessmentScope {
+					boundaries(first: $first, after: $after) {
+						edges {
+							node {
+								id
+								riskAssessmentScopeId
+								parentBoundaryId
+								name
+								createdAt
+								updatedAt
+							}
+						}
+						pageInfo {
+							hasNextPage
+							endCursor
+						}
+					}
+				}
+			}
+		}
+	`;
+
+	const boundaries = await proboApiRequestAllItems.call(
+		this,
+		query,
+		{ scopeId },
+		(response) => {
+			const data = response?.data as IDataObject | undefined;
+			const node = data?.node as IDataObject | undefined;
+			return node?.boundaries as IDataObject | undefined;
+		},
+		returnAll,
+		limit,
+	);
+
+	return {
+		json: { boundaries },
+		pairedItem: { item: itemIndex },
+	};
+}