Add METAB Integration Workflow Tutorial

[Morgan88888888]

Summary/Motivation:

This PR adds a tutorial demonstrating the surrogate model–based model integration workflow.
The tutorial will be used as part of the PSE Summit breakout session to support the presentation on novel technology screening (with METAB as the case study).
The goal is to showcase how surrogate modeling can streamline integration of external models into process systems analysis workflows in WaterTAP.

Changes proposed in this PR:

• Added a Jupyter notebook tutorial for surrogate model–based model integration.
• Included the stable version of the model integration source code.
• Demonstrated METAB system as a case study for novel technology screening.
• Provided step-by-step workflow documentation for use in training and presentations.

Notes for Reviewers:

• The notebook runs successfully in a local environment.
• It requires the additional dependency QSD-San to be installed.

Legal Acknowledgement

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1. I agree my contributions are submitted under the license terms described in the LICENSE.txt file at the top level of this directory.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[adam-a-a]

I think the notebook (and perhaps all supporting files in this PR) belong in the tutorials directory. We should also add this tutorial to the tutorial landing page, like so: https://github.com/watertap-org/watertap/pull/1629/files#diff-fb90839f4ae252cbbfa6a8cd312447cdffc4d87f63bed1bc1cd2629b06753fddR24-R26

[adam-a-a]

Also, we should aim to have this merged before the California workshop. Thus, I think you can add the optional dependencies here: https://github.com/watertap-org/watertap/pull/1629/files#diff-fb90839f4ae252cbbfa6a8cd312447cdffc4d87f63bed1bc1cd2629b06753fddR24-R26

[adam-a-a]

One more comment--for the California workshop, we should add the next step of integrating the surrogates into a flowsheet (i.e., with BSM1, assuming we can make that work given our previous PRs). If not BSM1 directly, then some example of where we use the surrogates to generate example results.

[luohezhiming]

LGTM. Some suggestions could be addressed later:

• Add a brief description of QSD-SAN model will help users to understand the context
• Tutorials show 4 surrogate modeling methods but only show results with polynomial, the users might want to see another modeling result for a comparison,

[MarcusHolly]

A couple of minor suggestions/questions, but overall this looks really good to me

[MarcusHolly]

I agree with Chenyu that it'd be nice to have a little blurb here briefly describing QSD-SAN

[MarcusHolly]

Is there a simpler way to compare model performance rather than just using display_performance for each of the 4 options. I'm assuming this is the goal of the parity plot(s), but you just haven't gotten around to adding it yet?