Add vendor publish to document system

Replace the old snapshot-based system for vendors with the publish
document system, mirroring the prior processing activity / DPIA / TIA
migration. Includes the GraphQL mutation, MCP tool, CLI command, n8n
operation, frontend publish dialog, e2e tests, and a prosemirror
register template covering vendor profile fields plus per-vendor
sections for services, contacts, risk assessments, compliance reports,
BAA and DPA agreements.

The vendor register lives as a generated DocumentTypeRegister document
on the organization, reused across publishes (the major version bumps
on every republish). Approvers can be passed in to create a draft
pending approval; otherwise the version is published immediately. The
frontend Vendors page exposes a Publish button and a Document link
button when the document exists, and pre-fills the previous default
approvers.

Remove snapshot mode entirely from vendors and their sub-entities: drop
snapshotId/sourceId from GraphQL Vendor type and VendorFilter; remove
SnapshotsTypeVendors from the snapshot registry and delete
Vendors.Snapshot, VendorSnapshotter interface and all
*.InsertVendorSnapshots methods on contacts, services, risk
assessments, compliance reports, BAA and DPA. Drop the snapshot routes
and banner from the frontend. The snapshot_id columns remain in the
database but are now filtered out with snapshot_id IS NULL.

Add Get/Upsert/Clear GeneratedDocumentID methods on Vendor backed by a
new vendors_document_id column on generated_documents, matching the
ProcessingActivity/Finding/Obligation pattern.

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

pkg/cmd/vendormgmt/publish/publish.go

@@ -0,0 +1,148 @@
+// 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 publish
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"go.probo.inc/probo/pkg/cli/api"
+	"go.probo.inc/probo/pkg/cmd/cmdutil"
+)
+
+const publishMutation = `
+mutation($input: PublishVendorListInput!) {
+  publishVendorList(input: $input) {
+    documentEdge {
+      node {
+        id
+        status
+        createdAt
+      }
+    }
+    documentVersionEdge {
+      node {
+        id
+        title
+        major
+        minor
+        status
+      }
+    }
+  }
+}
+`
+
+type publishResponse struct {
+	PublishVendorList struct {
+		DocumentEdge struct {
+			Node struct {
+				ID        string `json:"id"`
+				Status    string `json:"status"`
+				CreatedAt string `json:"createdAt"`
+			} `json:"node"`
+		} `json:"documentEdge"`
+		DocumentVersionEdge struct {
+			Node struct {
+				ID     string `json:"id"`
+				Title  string `json:"title"`
+				Major  int    `json:"major"`
+				Minor  int    `json:"minor"`
+				Status string `json:"status"`
+			} `json:"node"`
+		} `json:"documentVersionEdge"`
+	} `json:"publishVendorList"`
+}
+
+func NewCmdPublish(f *cmdutil.Factory) *cobra.Command {
+	var (
+		flagOrg      string
+		flagApprover []string
+	)
+
+	cmd := &cobra.Command{
+		Use:   "publish",
+		Short: "Publish the vendor register as a document version",
+		Example: `  # Publish the vendor register
+  prb vendor publish --org ORG_ID
+
+  # Publish with approvers
+  prb vendor publish --org ORG_ID --approver PROFILE_ID1 --approver PROFILE_ID2`,
+		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
+			}
+
+			if flagOrg == "" {
+				flagOrg = hc.Organization
+			}
+			if flagOrg == "" {
+				return fmt.Errorf("organization is required: pass --org or run `prb auth login`")
+			}
+
+			client := api.NewClient(
+				host,
+				hc.Token,
+				"/api/console/v1/graphql",
+				cfg.HTTPTimeoutDuration(),
+				cmdutil.TokenRefreshOption(cfg, host, hc),
+			)
+
+			input := map[string]any{
+				"organizationId": flagOrg,
+			}
+
+			if len(flagApprover) > 0 {
+				input["approverIds"] = flagApprover
+			}
+
+			data, err := client.Do(
+				publishMutation,
+				map[string]any{"input": input},
+			)
+			if err != nil {
+				return err
+			}
+
+			var resp publishResponse
+			if err := json.Unmarshal(data, &resp); err != nil {
+				return fmt.Errorf("cannot parse response: %w", err)
+			}
+
+			v := resp.PublishVendorList.DocumentVersionEdge.Node
+			_, _ = fmt.Fprintf(
+				f.IOStreams.Out,
+				"Published vendor register %s (v%d.%d)\n",
+				v.Title,
+				v.Major,
+				v.Minor,
+			)
+
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVar(&flagOrg, "org", "", "Organization ID")
+	cmd.Flags().StringArrayVar(&flagApprover, "approver", nil, "Approver profile ID (can be repeated)")
+
+	return cmd
+}

pkg/cmd/vendormgmt/vendormgmt.go

@@ -21,6 +21,7 @@ import (
 	"go.probo.inc/probo/pkg/cmd/vendormgmt/create"
 	"go.probo.inc/probo/pkg/cmd/vendormgmt/delete"
 	"go.probo.inc/probo/pkg/cmd/vendormgmt/list"
+	"go.probo.inc/probo/pkg/cmd/vendormgmt/publish"
 	"go.probo.inc/probo/pkg/cmd/vendormgmt/update"
 	"go.probo.inc/probo/pkg/cmd/vendormgmt/view"
 )
@@ -37,6 +38,7 @@ func NewCmdVendor(f *cmdutil.Factory) *cobra.Command {
 	cmd.AddCommand(update.NewCmdUpdate(f))
 	cmd.AddCommand(delete.NewCmdDelete(f))
 	cmd.AddCommand(assess.NewCmdAssess(f))
+	cmd.AddCommand(publish.NewCmdPublish(f))
 
 	return cmd
 }