Improvement to CATs and testing

[Rigidity]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 89.28571% with 3 lines in your changes missing coverage. Please review.

Project coverage is 53.44%. Comparing base (6e63ac2) to head (65db87c).
Report is 9 commits behind head on main.

Files	Patch %	Lines
crates/chia-sdk-driver/src/primitives/nft.rs	50.00%	2 Missing ⚠️
crates/chia-sdk-driver/src/primitives/cat_spend.rs	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #80      +/-   ##
==========================================
- Coverage   54.08%   53.44%   -0.64%     
==========================================
  Files          52       53       +1     
  Lines        1973     1946      -27     
==========================================
- Hits         1067     1040      -27     
  Misses        906      906              

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