fix: FIT-1439: FSM State Manager must not attempt to transition state with Anonymous users it should be None

[bmartel]

This pull request introduces an improvement to how state transitions are handled when triggered by anonymous users, ensuring that the triggered_by field is set appropriately. It also adds a new test to verify this behavior.

Enhancement to state transition logic:

• Updated the transition_state method in state_manager.py to set triggered_by to None if the user is not authenticated, preventing anonymous users from being incorrectly recorded as the trigger.

Testing improvements:

• Added a test case in test_fsm_integration.py to verify that state transitions with an AnonymousUser succeed and that triggered_by is set to None.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.60%. Comparing base (3c7db22) to head (657c341).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #9466       +/-   ##
============================================
+ Coverage    68.32%   81.60%   +13.28%     
============================================
  Files         1162      278      -884     
  Lines        68984    25262    -43722     
  Branches     11780        0    -11780     
============================================
- Hits         47133    20616    -26517     
+ Misses       21844     4646    -17198     
+ Partials         7        0        -7     

Flag	Coverage Δ
lsf-integration	?
lsf-unit	?
pytests	81.60% <100.00%> (-0.02%)	⬇️

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