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>

pkg/cmd/risk-assessment/boundary/update/update.go

@@ -0,0 +1,136 @@
+// 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.
+
+package update
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"go.probo.inc/probo/pkg/cli/api"
+	"go.probo.inc/probo/pkg/cmd/cmdutil"
+)
+
+const updateMutation = `
+mutation($input: UpdateRiskAssessmentBoundaryInput!) {
+  updateRiskAssessmentBoundary(input: $input) {
+    riskAssessmentBoundary {
+      id
+      parentBoundaryId
+      name
+      createdAt
+      updatedAt
+    }
+  }
+}
+`
+
+type updateResponse struct {
+	UpdateRiskAssessmentBoundary struct {
+		RiskAssessmentBoundary struct {
+			ID               string  `json:"id"`
+			ParentBoundaryId *string `json:"parentBoundaryId"`
+			Name             string  `json:"name"`
+			CreatedAt        string  `json:"createdAt"`
+			UpdatedAt        string  `json:"updatedAt"`
+		} `json:"riskAssessmentBoundary"`
+	} `json:"updateRiskAssessmentBoundary"`
+}
+
+func NewCmdUpdate(f *cmdutil.Factory) *cobra.Command {
+	var (
+		flagName        string
+		flagParentId    string
+		flagClearParent bool
+	)
+
+	cmd := &cobra.Command{
+		Use:   "update <id>",
+		Short: "Update a risk assessment boundary",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cfg, err := f.Config()
+			if err != nil {
+				return err
+			}
+
+			host, hc, err := cfg.DefaultHost()
+			if err != nil {
+				return err
+			}
+
+			client := api.NewClient(
+				host,
+				hc.Token,
+				"/api/console/v1/graphql",
+				cfg.HTTPTimeoutDuration(),
+				cmdutil.TokenRefreshOption(cfg, host, hc),
+			)
+
+			if flagClearParent && cmd.Flags().Changed("parent-id") {
+				return fmt.Errorf("cannot use --parent-id and --clear-parent together")
+			}
+
+			input := map[string]any{
+				"id": args[0],
+			}
+
+			if cmd.Flags().Changed("name") {
+				input["name"] = flagName
+			}
+
+			if cmd.Flags().Changed("parent-id") {
+				input["parentBoundaryId"] = flagParentId
+			}
+
+			if flagClearParent {
+				input["parentBoundaryId"] = nil
+			}
+
+			if len(input) == 1 {
+				return fmt.Errorf("at least one field must be specified for update")
+			}
+
+			data, err := client.Do(
+				updateMutation,
+				map[string]any{"input": input},
+			)
+			if err != nil {
+				return err
+			}
+
+			var resp updateResponse
+			if err := json.Unmarshal(data, &resp); err != nil {
+				return fmt.Errorf("cannot parse response: %w", err)
+			}
+
+			r := resp.UpdateRiskAssessmentBoundary.RiskAssessmentBoundary
+			_, _ = fmt.Fprintf(
+				f.IOStreams.Out,
+				"Updated risk assessment boundary %s (%s)\n",
+				r.ID,
+				r.Name,
+			)
+
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVar(&flagName, "name", "", "Boundary name")
+	cmd.Flags().StringVar(&flagParentId, "parent-id", "", "Parent boundary ID")
+	cmd.Flags().BoolVar(&flagClearParent, "clear-parent", false, "Remove the parent boundary (make it top-level)")
+
+	return cmd
+}