VQkit v1.1 — Post-processing menu cleanup

Changes
-------
- Removed [7] Export and plotting tools from the main post-processing menu.
- Application-oriented analysis is now [7] instead of [8].
- Removed the obsolete export/plotting category from smart-command search.
- Existing internal export/plot helper functions are retained where used by other workflows.

Validation
----------
418 tests passed.
