Use the PALEOS P-S tables under the dummy structure for a PALEOS mantle

[timlichtenberg]

Description

Since #919, a run with the dummy structure and SPIDER or Aragog energetics placed the FWL_DATA Wolf and Bower P-S set and the melting_dir curves, also when the mantle EOS was PALEOS. With the same initial-condition settings such a run then started from a different state: on a dummy-structure Aragog case the first interior call starts fully molten at 3360 K instead of 1718 K with Phi 0.018, and takes 461 CVODE steps instead of 7.

The dummy structure now follows mantle_eos. With a PALEOS mantle EOS (a PALEOS mixture follows its MgSiO3 component), it builds and uses the PALEOS P-S tables and their solidus and liquidus through generate_spider_tables, as the Zalmoxis structure does, and fetches the PALEOS tables it needs. With a non-PALEOS mantle EOS it keeps the Wolf and Bower set and the melting_dir curves.

• Aragog still requires melting_dir with the dummy structure; PROTEUS passes those P-T files, and the entropy solver integrates on the PALEOS P-S set. A run where melting_dir is set but not used for the solve logs a warning.
• The rejection of two MgSiO3 sources in one mantle under the dummy structure applies only to SPIDER and Aragog energetics.
• The Zalmoxis structure is unchanged.
• A run started on main between Fetch reference data through fwl-io and require the tables each run reads #919 and this change and resumed after it builds the PALEOS tables on resume.

Validation of changes

• On the dummy-structure Aragog case, the first interior call matches the state before Fetch reference data through fwl-io and require the tables each run reads #919: T_magma 1717.682 K and Phi 0.018, against 3359.530 K and Phi 1.000 on main; the first 1-yr call takes 7 CVODE steps again.
• Two different melting_dir sets give bit for bit the same solve through the first call under dummy + PALEOS + Aragog.
• A coupled run with the Zalmoxis structure gives the same helpfile as main bit for bit, apart from the runtime column.
• Unit tests: 4498 passed. New tests cover the route for single and mixed PALEOS and non-PALEOS mantles, the PALEOS fetch, the missing-file error, the warning, and the validator; patch coverage 100 % (34 of 34 lines). The integration tests that run Aragog with the dummy or Zalmoxis structure pass.

Tested on macOS 26 with Python 3.12.

Checklist

• I have followed the contributing guidelines
• My code follows the style guidelines of this project
• I have performed a self-review of my code
• My changes generate no new warnings or errors
• I have checked that the tests still pass on my computer
• I have updated the docs, as appropriate
• I have added tests for these changes, as appropriate
• I have checked that all dependencies have been updated, as required

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.51%. Comparing base (e95ebc1) to head (7ddcd53).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #938      +/-   ##
==========================================
+ Coverage   95.50%   95.51%   +0.01%     
==========================================
  Files         127      127              
  Lines       20808    20833      +25     
  Branches     3522     3528       +6     
==========================================
+ Hits        19872    19898      +26     
+ Misses        912      911       -1     
  Partials       24       24              

Flag	Coverage Δ
unit-tests	91.92% <100.00%> (+0.01%)	⬆️

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