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>

contrib/claude/coredata.md

@@ -155,32 +155,30 @@ Map `pgx.ErrNoRows` to `ErrResourceNotFound`. Check unique constraint violations
 Filters implement `SQLFragment() string` and `SQLArguments() pgx.NamedArgs`. Use double pointers for three-state filtering: `nil` = no filter, `*nil` = IS NULL, `*val` = equals.
 
 ```go
-type AssetFilter struct {
-    snapshotID **gid.GID
+type CookieBannerFilter struct {
+    state *CookieBannerState
 }
 
-func NewAssetFilter(snapshotID **gid.GID) *AssetFilter {
-    return &AssetFilter{snapshotID: snapshotID}
+func NewCookieBannerFilter(state *CookieBannerState) *CookieBannerFilter {
+    return &CookieBannerFilter{state: state}
 }
 
-func (f *AssetFilter) SQLFragment() string {
-    if f.snapshotID == nil {
-        return "TRUE"
-    }
-
-    if *f.snapshotID == nil {
-        return "snapshot_id IS NULL"
-    }
-
-    return "snapshot_id = @filter_snapshot_id"
+func (f *CookieBannerFilter) SQLFragment() string {
+    return `(
+        CASE
+            WHEN @filter_state::text IS NOT NULL THEN
+                state = @filter_state::cookie_banner_state
+            ELSE TRUE
+        END
+    )`
 }
 
-func (f *AssetFilter) SQLArguments() pgx.NamedArgs {
-    if f.snapshotID == nil || *f.snapshotID == nil {
-        return pgx.NamedArgs{}
+func (f *CookieBannerFilter) SQLArguments() pgx.StrictNamedArgs {
+    args := pgx.StrictNamedArgs{"filter_state": nil}
+    if f.state != nil {
+        args["filter_state"] = string(*f.state)
     }
-
-    return pgx.NamedArgs{"filter_snapshot_id": **f.snapshotID}
+    return args
 }
 ```