more mesh metrics: jacobian ratio

### 📝 Description of the feature

Mechanical has an extensive list of mesh metrics that allow the customer to inspect and even set controls for the mesh metrics. A particular customer has regular issues with elements with negative jacobian ratios. If this information is available, it would be nice to make it available to users.

### 💡 Steps for implementing the feature

Determine if other mesh metrics are available and if so, make it possible for users to access them.

### 🔗 Useful links and references

This is a partial list of mechanical mesh metrics.

No files, tests, or entry points are named in the issue. Start by locating how existing Mechanical mesh metrics are exposed to Python users, then determine whether jacobian ratio and other available metrics can follow that access path; done means users can retrieve the requested metric and the behavior is covered by the project's existing checks.

Written by the indexing model from the issue text.