[projmgr] Handle load mode for project-context

[grasci-arm]

Address #2080

[github-actions]

Test Results

    3 files     21 suites   12m 45s ⏱️
  391 tests   391 ✅ 0 💤 0 ❌
1 173 runs  1 173 ✅ 0 💤 0 ❌

Results for commit eff38cf.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.54%. Comparing base (b5bf5db) to head (eff38cf).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2111   +/-   ##
=======================================
  Coverage   65.54%   65.54%           
=======================================
  Files         181      181           
  Lines       36979    36982    +3     
  Branches    21494    21497    +3     
=======================================
+ Hits        24238    24240    +2     
  Misses       8350     8350           
- Partials     4391     4392    +1     

Flag	Coverage Δ
projmgr-cov	79.51% <100.00%> (-0.01%)	⬇️

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Files with missing lines	Coverage Δ
tools/projmgr/include/ProjMgrWorker.h	0.00% <ø> (ø)
tools/projmgr/src/ProjMgrRunDebug.cpp	85.64% <100.00%> (+0.03%)	⬆️
tools/projmgr/src/ProjMgrWorker.cpp	88.08% <100.00%> (-0.03%)	⬇️

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