Add command line client

[lsbardel]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 7.08661% with 118 lines in your changes are missing coverage. Please review.

Project coverage is 80.51%. Comparing base (9d8c1a1) to head (b049465).

Files	Patch %	Lines
quantflow/cli/__init__.py	0.00%	82 Missing ⚠️
quantflow/utils/df.py	0.00%	28 Missing ⚠️
quantflow/cli/settings.py	0.00%	7 Missing ⚠️
quantflow/data/fmp.py	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #5      +/-   ##
==========================================
- Coverage   85.69%   80.51%   -5.18%     
==========================================
  Files          29       32       +3     
  Lines        1846     1966     +120     
==========================================
+ Hits         1582     1583       +1     
- Misses        264      383     +119     

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