Edge case bug fixes

[TomWagg]

• Fixes Massive massless remnants 😅 #724
• Fixes Systems that unmerge #725
• Fixes SNe during CE events don't log a disruption in BPP #729

I took a crack at some of the weirdos I've found recently with the GDB setup and I have fixed all of my test cases at least.

Changes are:

• Ensure disruptions are logged with evol_type==11 when SNe occur during CEs
• Set tb=sep=0 for cases where AIC caused a WD to explode and leave behind no remnant (evolve_type==9)
• Remove bug where kstar=15 was assigned its previous epoch mass after merging during a CE and the merger product goes SN

To discuss:

1. For that last one I think I am correct to comment out these chunks of code, since Katie seems to have commented out an identical chunk in 2023 elsewhere in the code
2. For AIC of a WD -> should we be logging this in the bpp
3. Similarly, a CE -> merger -> SN is only logged as CE -> SN. I think we should have a row for the merger too no?

[codecov]

Codecov Report

❌ Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.94%. Comparing base (8772c07) to head (2a0abe3).
⚠️ Report is 134 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/cosmic/src/evolv2.f	0.00%	4 Missing ⚠️
src/cosmic/src/comenv.f	0.00%	1 Missing and 1 partial ⚠️
src/cosmic/_version.py	0.00%	1 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #755      +/-   ##
===========================================
- Coverage    86.91%   77.94%   -8.97%     
===========================================
  Files           40       50      +10     
  Lines        25542    27396    +1854     
  Branches         0      859     +859     
===========================================
- Hits         22198    21353     -845     
- Misses        3344     5769    +2425     
- Partials         0      274     +274     

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[TomWagg]

@katiebreivik I recommend reviewing this before #756

[katiebreivik]

I did not, in fact, review this before the other PR, but I think we are good nonetheless. Thanks @TomWagg !