feat: support directory upload

[aliel]

Self proofreading checklist

• The new code clear, easy to read and well commented.
• New code does not duplicate the functions of builtin or popular libraries.
• An LLM was used to review the new code and look for simplifications.
• All new code is covered by relevant tests.

Documentation

TODO

Changes

the upload command support file or directory for the uploading task and check the user balance before sending files to the servers

How to test

aleph file upload __directory__

[github-actions]

Failed to retrieve llama text: POST 502: Bad Gateway

[codecov]

Codecov Report

❌ Patch coverage is 35.89744% with 50 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.73%. Comparing base (93c9c6d) to head (00bbb93).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/aleph_client/commands/files.py	35.89%	48 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #428      +/-   ##
==========================================
- Coverage   61.26%   60.73%   -0.54%     
==========================================
  Files          20       20              
  Lines        3971     4024      +53     
  Branches      585      595      +10     
==========================================
+ Hits         2433     2444      +11     
- Misses       1262     1303      +41     
- Partials      276      277       +1     

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[aliel]

waiting aleph-im/aleph-sdk-python#271

[1yam]

LGTM