Quick resistive tf fixes

[chris-ashe]

This pull request introduces a comprehensive renaming and standardization of variable names related to the TF coil cooling system throughout the codebase and documentation. The changes improve clarity and consistency, making it easier to understand and maintain the code. Additionally, some minor updates were made to plots and documentation to reflect these changes and provide more detailed information.

Variable Renaming and Standardization

• Renamed TF coil cooling variables for clarity and consistency:

  • tcoolin → temp_cp_coolant_inlet
  • rcool → radius_cp_coolant_channel
  • vcool → vel_cp_coolant_midplane
  • ncool → n_cp_coolant_channels_total
  • dtiocool → dtemp_cp_coolant

• Updated all input files and process logic to use new variable names, ensuring backward compatibility via the obsolete variable mapping.

Documentation Improvements

• Added a section to the standards documentation specifying the naming convention for temperature changes, introducing the dtemp_ prefix for relative temperature rises or falls.

Plot and Visualization Enhancements

• Added a detailed cooling information box to the TF coil winding pack plot, showing coolant inlet temperature, temperature rise, velocity, and other relevant data.
• Made minor adjustments to plot text and annotation positions for improved readability.

Minor Additions

• Added initialization for a new variable m_tf_wp_steel_conduit in tfcoil_variables.py.## Description

Checklist

I confirm that I have completed the following checks:

• My changes follow the PROCESS style guide
• I have justified any large differences in the regression tests caused by this pull request in the comments.
• I have added new tests where appropriate for the changes I have made.
• If I have had to change any existing unit or integration tests, I have justified this change in the pull request comments.
• If I have made documentation changes, I have checked they render correctly.
• I have added documentation for my change, if appropriate.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 78.12500% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.85%. Comparing base (8a4d67c) to head (1643b71).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
process/io/plot_proc.py	0.00%	4 Missing ⚠️
process/init.py	0.00%	2 Missing ⚠️
process/resistive_tf_coil.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4014      +/-   ##
==========================================
- Coverage   46.30%   45.85%   -0.45%     
==========================================
  Files         123      123              
  Lines       28961    29396     +435     
==========================================
+ Hits        13411    13481      +70     
- Misses      15550    15915     +365     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[j-a-foster]

Happy with changes.

[je-cook]

This function is way way too long. Instead of adding to it please refactor it