chore!: unify and refactor trainer

[ab93]

• improve and unify Trainer with better logging and performance
• add VAE model to model factory
• rc0 version

[codecov]

Codecov Report

Merging #315 (341d05d) into main (509e38a) will decrease coverage by 0.23%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #315      +/-   ##
==========================================
- Coverage   93.93%   93.70%   -0.23%     
==========================================
  Files          77       76       -1     
  Lines        3495     3464      -31     
  Branches      280      278       -2     
==========================================
- Hits         3283     3246      -37     
- Misses        160      170      +10     
+ Partials       52       48       -4     

Files	Coverage Δ
numalogic/blocks/_nn.py	100.00% <100.00%> (ø)
numalogic/config/_config.py	100.00% <100.00%> (ø)
numalogic/config/factory.py	87.83% <100.00%> (+0.16%)	⬆️
numalogic/models/autoencoder/__init__.py	100.00% <100.00%> (ø)
numalogic/models/autoencoder/base.py	97.87% <100.00%> (-0.44%)	⬇️
numalogic/models/autoencoder/variants/conv.py	100.00% <100.00%> (ø)
numalogic/models/autoencoder/variants/vanilla.py	100.00% <100.00%> (ø)
numalogic/models/vae/__init__.py	100.00% <100.00%> (ø)
numalogic/tools/trainer.py	95.65% <100.00%> (ø)
numalogic/udfs/postprocess.py	87.50% <100.00%> (+0.83%)	⬆️
... and 1 more

... and 2 files with indirect coverage changes

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