Add direct_model to create_model

[clizbe]

Related issues

Closes #1031

Checklist

• I am following the contributing guidelines

• Tests are passing

• Lint workflow is passing

• Docs were updated and workflow is passing

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 97.77%. Comparing base (feb0cb7) to head (1214468).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/create-model.jl	66.66%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (66.66%) is below the target coverage (95.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1067      +/-   ##
==========================================
- Coverage   97.86%   97.77%   -0.10%     
==========================================
  Files          29       29              
  Lines         985      987       +2     
==========================================
+ Hits          964      965       +1     
- Misses         21       22       +1     

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