Add inboard blkt enum

[chris-ashe]

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.

[Copilot]

Pull request overview

This PR introduces a dedicated InboardBlanketConfiguration enum for the inboard blanket switch and updates blanket models/tests to use data.build.i_blkt_inboard (instead of data.fwbs.i_blkt_inboard) when determining whether an inboard blanket is present.

Changes:

• Added InboardBlanketConfiguration (IntEnum) and moved i_blkt_inboard into BuildData.
• Updated blanket model logic (DCLL + blanket library) to compare against enum values via data.build.i_blkt_inboard.
• Updated relevant unit tests to set/patch i_blkt_inboard on data.build and use the enum constants.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
process/data_structure/build_variables.py	Adds InboardBlanketConfiguration and defines BuildData.i_blkt_inboard.
process/data_structure/fwbs_variables.py	Removes FWBSData.i_blkt_inboard.
process/core/init.py	Updates inboard blanket thickness zeroing logic to use data.build.i_blkt_inboard and the enum.
process/models/blankets/dcll.py	Switches inboard blanket presence checks to data.build.i_blkt_inboard == InboardBlanketConfiguration.INBOARD_BLANKET_PRESENT.
process/models/blankets/blanket_library.py	Replaces integer checks on i_blkt_inboard with enum comparisons via data.build.
tests/unit/models/test_dcll.py	Updates test parameters and monkeypatch target to data.build.i_blkt_inboard using the enum.
tests/unit/models/blankets/test_ccfe_hcpb.py	Updates inboard blanket switch usage to the enum and monkeypatch target to data.build.
tests/unit/models/blankets/test_blanket_library.py	Updates inboard blanket switch usage to the enum and monkeypatch target to data.build.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 40.00000% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.70%. Comparing base (04a8363) to head (8fd0c62).

Files with missing lines	Patch %	Lines
process/models/blankets/blanket_library.py	12.50%	21 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4298      +/-   ##
==========================================
+ Coverage   48.68%   48.70%   +0.01%     
==========================================
  Files         151      151              
  Lines       29296    29303       +7     
==========================================
+ Hits        14264    14271       +7     
  Misses      15032    15032              

☔ View full report in Codecov by Harness.
📢 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.