feat: [dotnet] add agents app tests

[bassmang]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.60%. Comparing base (05b14f1) to head (13eda5d).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5432      +/-   ##
==========================================
+ Coverage   70.16%   75.60%   +5.44%     
==========================================
  Files         262      189      -73     
  Lines       14712    12734    -1978     
  Branches      243        0     -243     
==========================================
- Hits        10322     9627     -695     
+ Misses       4200     3107    -1093     
+ Partials      190        0     -190     

Flag	Coverage Δ
unittests	75.60% <ø> (+5.44%)	⬆️

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