Feature: Allow PAYG using base

[1yam]

Explain what problem this PR is resolving

Related ClickUp, GitHub or Jira tickets : ALEPH-XXX

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.
• New classes and functions contain docstrings explaining what they provide.
• All new code is covered by relevant tests.

Documentation

The documentation regarding the impacted features is available on:

URL

The changes in the documentation are available here:

URL

Changes

Explain the changes that were made. The idea is not to list exhaustively all the changes made (GitHub already provides a full diff), but to help the reviewers better understand:

• which specific file changes go together, e.g: when creating a table in the front-end, there usually is a config file that goes with it
• the reasoning behind some changes, e.g: deleted files because they are now redundant
• the behaviour to expect, e.g: tooltip has purple background color because the client likes it so, changed a key in the API response to be consistent with other endpoints

How to test

Explain how to test your PR.
If a specific config is required explain it here (account, data entry, ...)

Print screen / video

Upload here screenshots or videos showing the changes if relevant.

Notes

Things that the reviewers should know: known bugs that are out of the scope of the PR, other trade-offs that were made.
If the PR depends on a PR in another repo, or merges into another PR (i.o. main), it should also be mentioned here

[codecov]

Codecov Report

Attention: Patch coverage is 37.96296% with 67 lines in your changes missing coverage. Please review.

Project coverage is 40.46%. Comparing base (740b156) to head (9270db5).
Report is 1 commits behind head on master.

Files	Patch %	Lines
src/aleph_client/commands/instance/__init__.py	22.44%	33 Missing and 5 partials ⚠️
src/aleph_client/commands/utils.py	33.33%	16 Missing ⚠️
src/aleph_client/commands/instance/superfluid.py	60.60%	9 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #258      +/-   ##
==========================================
+ Coverage   38.62%   40.46%   +1.84%     
==========================================
  Files          18       19       +1     
  Lines        1820     1920     +100     
  Branches      310      331      +21     
==========================================
+ Hits          703      777      +74     
- Misses       1097     1107      +10     
- Partials       20       36      +16     

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