Refactor opacity state handling and imports

[wkerzendorf]

Refactor the opacity state initialization to utilize a numba implementation for improved performance and update related tests. Additionally, streamline imports and introduce a new LineInteractionType class for better organization.

[tardis-bot]

*beep* *bop*
Hi human,
I ran ruff on the latest commit (f9a12fa).
Here are the outputs produced.
Results can also be downloaded as artifacts here.
Summarised output:

Details

2	I001  	[*] unsorted-imports
1	F401  	[*] unused-import
1	RET506	[*] superfluous-else-raise
Found 4 errors.
[*] 4 fixable with the `--fix` option.

Complete output(might be large):

Details

benchmarks/benchmark_base.py:1:1: I001 [*] Import block is un-sorted or un-formatted
benchmarks/benchmark_base.py:74:9: RET506 [*] Unnecessary `else` after `raise` statement
tardis/transport/montecarlo/tests/conftest.py:1:1: I001 [*] Import block is un-sorted or un-formatted
tardis/transport/montecarlo/tests/conftest.py:7:44: F401 [*] `tardis.opacities.opacity_state.opacity_state_initialize` imported but unused
Found 4 errors.
[*] 4 fixable with the `--fix` option.

[Copilot]

Pull Request Overview

This PR refactors opacity state handling by migrating the OpacityState class to a new numba-based implementation and reorganizes imports for better code organization. The changes improve performance through numba optimization while maintaining the same functionality.

• Migrates opacity state initialization from numba_interface to a dedicated opacity_state_numba module
• Moves LineInteractionType enum from numba_interface to the interaction module
• Updates all import statements and function calls to use the new module locations

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tardis/opacities/opacity_state_numba.py	Replaces old spec-based jitclass with modern type annotations and improves documentation
tardis/transport/montecarlo/interaction.py	Adds LineInteractionType enum definition and removes old import
tardis/transport/montecarlo/tests/test_interaction.py	Updates import to use LineInteractionType from new location
tardis/transport/montecarlo/tests/conftest.py	Updates import and function call to use new opacity state initialization
tardis/transport/montecarlo/configuration/base.py	Updates import to use LineInteractionType from new location
benchmarks/benchmark_base.py	Updates import and function call to use new opacity state initialization

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[andrewfullard]

Not sure what those comments are for

[wkerzendorf]

to make sure the lint4er doesn't go nuts

[codecov]

Codecov Report

❌ Patch coverage is 94.73684% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.92%. Comparing base (f70fee8) to head (f9a12fa).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
tardis/opacities/opacity_state_numba.py	93.54%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3264      +/-   ##
==========================================
- Coverage   74.11%   73.92%   -0.19%     
==========================================
  Files         259      259              
  Lines       17866    17886      +20     
==========================================
- Hits        13241    13223      -18     
- Misses       4625     4663      +38     

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