Migrate plugin Python package management from pip3 to uv

[mcosgriff]

• Replaced the pip3 calls with uv pip
• Using uv to create the virtual environment at ${PYTHONUSERBASE}

/gems $ tree /gems/uv
/gems/uv
├── CACHEDIR.TAG
├── interpreter-v4
│   └── 4c6c6b68efe0f91a
│       └── 9956a7adb4259607.msgpack
└── sdists-v9

3 directories, 2 files

Known behavior change: Plugin Python packages that are already present in the base openc3 venv (e.g. numpy) will no longer appear in Admin Console → Packages after plugin installation. uv pip is smarter than pip3 about deduplication and skips installing packages that are already satisfied, so nothing gets written to $PYTHONUSERBASE. The packages are still fully accessible to plugin scripts via OPENC3_PYTHON_BIN. This will be properly addressed in the upcoming per-plugin venv refactor.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.29%. Comparing base (397abec) to head (71a9261).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2902      +/-   ##
==========================================
- Coverage   78.29%   78.29%   -0.01%     
==========================================
  Files         673      673              
  Lines       55130    55130              
  Branches      728      728              
==========================================
- Hits        43164    43163       -1     
- Misses      11888    11889       +1     
  Partials       78       78              

Flag	Coverage Δ
python	79.34% <ø> (+<0.01%)	⬆️
ruby-api	80.10% <ø> (-0.05%)	⬇️
ruby-backend	82.18% <ø> (ø)

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[jmthomas]

You make a good point. We'll have to think about the UI implications of listing the dependencies for each plugin rather than in a huge generic list.

[mcosgriff]

You make a good point. We'll have to think about the UI implications of listing the dependencies for each plugin rather than in a huge generic list.

Something like in admin console

// Before
{
  "ruby": ["activesupport-7.0.0.gem"],
  "python": ["numpy-1.24.0", "pandas-2.0.1"]
}

// After
{
  "ruby": ["activesupport-7.0.0.gem"],
  "python": {
    "openc3-cosmos-demo": ["numpy-1.24.0", "pandas-2.0.1"],
    "my-custom-plugin": ["requests-2.31.0"]
  }
}