Mem-Client: No Deep MDS Imports Outside MDS

No deep MDS imports outside MDS rule.

Scope:
- Applies to new imports in `domains/frontend/mem-client/src/**` excluding `domains/frontend/mem-client/src/mds/**`.

Trigger:
- Added import specifiers in scope.

Hard requirements:
1) Do not add deep imports from `@/mds/components/**` outside MDS source.
2) Import from `@/mds` public barrel instead.

Decision:
- Return NOT APPROVED when trigger is met and new deep `@/mds/components/**` imports are introduced outside `src/mds/**`.