Refactor compatibility tests and improve server shutdown

[kmnhan]

Remove grouping of compatibility tests by coverage to simplify execution. Ensure proper termination of server threads during shutdown to prevent segmentation faults. Update lockfile for dependency management.

[codecov]

Codecov Report

❌ Patch coverage is 92.55490% with 139 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.09%. Comparing base (0ba5d50) to head (4602902).
⚠️ Report is 15 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...erlab/interactive/imagetool/manager/_mainwindow.py	94.82%	23 Missing and 11 partials ⚠️
...rc/erlab/interactive/imagetool/manager/_actions.py	86.47%	18 Missing and 5 partials ⚠️
src/erlab/interactive/imagetool/manager/_base.py	91.07%	11 Missing and 8 partials ⚠️
...erlab/interactive/imagetool/manager/_tool_graph.py	89.51%	5 Missing and 8 partials ⚠️
...rc/erlab/interactive/imagetool/manager/_lineage.py	90.00%	7 Missing and 4 partials ⚠️
.../interactive/imagetool/manager/_workspace_state.py	92.52%	5 Missing and 3 partials ⚠️
...rc/erlab/interactive/imagetool/manager/_widgets.py	84.09%	6 Missing and 1 partial ⚠️
...ab/interactive/imagetool/manager/_details_panel.py	94.64%	4 Missing and 2 partials ⚠️
...rc/erlab/interactive/imagetool/manager/_linking.py	81.25%	4 Missing and 2 partials ⚠️
...erlab/interactive/imagetool/manager/_dependency.py	91.83%	3 Missing and 1 partial ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #378      +/-   ##
==========================================
+ Coverage   88.90%   89.09%   +0.18%     
==========================================
  Files         139      145       +6     
  Lines       47200    47811     +611     
  Branches     7617     7624       +7     
==========================================
+ Hits        41961    42595     +634     
+ Misses       3265     3232      -33     
- Partials     1974     1984      +10     

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