feat: general refactoring, closing todos

[Lopa10ko]

This is a 🔨 code refactoring.

Summary

• add prediction saving mechanism for FEDOT-native OutputData (804ef43)
• add binary clf to the metrics test (8795a55)
• add ar to a minimal set for fast train forecasting (f15a7a1)
• add nodes: List[PipelineNode] property to fix unresolved references (5c27ac8)

[pep8speaks]

Hello @Lopa10ko! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file fedot/api/fedot_cli.py:

Line 3:1: F401 'pathlib.Path' imported but unused

• In the file test/unit/composer/test_metrics.py:

Line 2:1: F401 'sys' imported but unused

Comment last updated at 2024-09-12 19:07:00 UTC

[github-actions]

Code in this pull request still contains PEP8 errors, please write the /fix-pep8 command in the comments below to create commit with automatic fixes.

Comment last updated at

[codecov]

Codecov Report

Attention: Patch coverage is 48.27586% with 15 lines in your changes missing coverage. Please review.

Project coverage is 80.10%. Comparing base (92218df) to head (5c27ac8).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
fedot/core/data/data.py	20.00%	8 Missing ⚠️
fedot/api/main.py	50.00%	5 Missing ⚠️
fedot/api/fedot_cli.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1328      +/-   ##
==========================================
- Coverage   80.14%   80.10%   -0.04%     
==========================================
  Files         146      146              
  Lines       10285    10296      +11     
==========================================
+ Hits         8243     8248       +5     
- Misses       2042     2048       +6     

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