fix precompilation

[t-bltg]

__init__ must be called in precompile_workload.

Also, use Base.get_have_truecolor if possible.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.71429% with 2 lines in your changes missing coverage. Please review.

Project coverage is 98.31%. Comparing base (ae99e73) to head (146b3ba).
Report is 21 commits behind head on main.

Files with missing lines	Patch %	Lines
src/common.jl	81.81%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #399      +/-   ##
==========================================
- Coverage   99.75%   98.31%   -1.45%     
==========================================
  Files          36       36              
  Lines        2078     2074       -4     
==========================================
- Hits         2073     2039      -34     
- Misses          5       35      +30     

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