fix: improve asset handling, logging, and ui conditions

Refactored asset handling to support multiple CSS entries and fixed context handling in authenticator when executed through mcp. Adjusted UI readonly conditions.

app/src/ui/routes/data/data.$entity.index.tsx

@@ -169,8 +169,6 @@ function EntityCreateButton({ entity }: { entity: Entity }) {
          media: b.app.config.media.entity_name,
       };
       if (system.users === entity.name) {
-         if (b.readonly) return null;
-
          return (
             <Button onClick={createUserModal.open} variant="primary">
                New User