fix: prevent tool and command classes instantiation outside of modeler object

[RobPasMue]

Description

Users have a hard time using the tools/commands. They end up instantiating objects of their own when they shouldn't. They should be using directly from the modeler object. We will know throw errors whenever this happens.

Issue linked

Closes #2184

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.63%. Comparing base (24eeafa) to head (8e288b8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2188      +/-   ##
==========================================
+ Coverage   94.59%   94.63%   +0.04%     
==========================================
  Files         141      141              
  Lines       10392    10404      +12     
==========================================
+ Hits         9830     9846      +16     
+ Misses        562      558       -4     

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