C++ harmony

[Intron7]

moves harmony to use the new nanobind backend to make it even faster and more efficent

[codecov-commenter]

Codecov Report

❌ Patch coverage is 90.41096% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.53%. Comparing base (92e0334) to head (e8d81a4).

Files with missing lines	Patch %	Lines
...pids_singlecell/preprocessing/_harmony/__init__.py	93.65%	4 Missing ⚠️
...apids_singlecell/preprocessing/_harmony/_helper.py	70.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #578      +/-   ##
==========================================
- Coverage   87.28%   86.53%   -0.75%     
==========================================
  Files          97       97              
  Lines        6890     6811      -79     
==========================================
- Hits         6014     5894     -120     
- Misses        876      917      +41     

Files with missing lines	Coverage Δ
src/rapids_singlecell/_cuda/__init__.py	70.00% <ø> (ø)
...rapids_singlecell/preprocessing/_harmony/_fuses.py	100.00% <ø> (ø)
...ids_singlecell/preprocessing/_harmony_integrate.py	53.57% <ø> (ø)
...apids_singlecell/preprocessing/_harmony/_helper.py	66.50% <70.00%> (-19.22%)	⬇️
...pids_singlecell/preprocessing/_harmony/__init__.py	93.42% <93.65%> (-3.69%)	⬇️