Assets as document: replace snapshot with publish workflow

Remove assets from the snapshot system and replace with a publish-based
document workflow that generates versioned ProseMirror documents.

- Remove snapshot_id/source_id from asset and asset_vendor models
- Delete AssetFilter (no longer needed without snapshot filtering)
- Add PublishAssetList service, GraphQL mutation, MCP tool, CLI command,
  and n8n operation
- Add asset_list_document_id column to generated_documents table
- Generate ProseMirror documents with asset inventory tables
  (name, type, amount, data types stored, owner, vendors)
- Add AssetListDocument resolver on Organization type
- Update frontend to remove snapshot routes/params and add publish dialog
- Add e2e tests for asset publish (immediate, with approvers, reuse, RBAC)
- Add migration script for converting legacy asset snapshots to documents
- Exclude ASSETS from snapshot type lists and e2e snapshot tests
- Move generated_documents SQL to coredata methods on Datum and Asset
- Clear generated document and SOA references on soft delete and archive

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

pkg/cmd/root/root.go

@@ -18,6 +18,7 @@ import (
 	"github.com/spf13/cobra"
 	accessreview "go.probo.inc/probo/pkg/cmd/access-review"
 	cmdapi "go.probo.inc/probo/pkg/cmd/api"
+	"go.probo.inc/probo/pkg/cmd/asset"
 	"go.probo.inc/probo/pkg/cmd/auditlog"
 	"go.probo.inc/probo/pkg/cmd/auth"
 	"go.probo.inc/probo/pkg/cmd/browse"
@@ -71,6 +72,7 @@ func NewCmdRoot(f *cmdutil.Factory) *cobra.Command {
 
 	cmd.AddCommand(accessreview.NewCmdAccessReview(f))
 	cmd.AddCommand(cmdapi.NewCmdAPI(f))
+	cmd.AddCommand(asset.NewCmdAsset(f))
 	cmd.AddCommand(auditlog.NewCmdAuditLog(f))
 	cmd.AddCommand(auth.NewCmdAuth(f))
 	cmd.AddCommand(browse.NewCmdBrowse(f))