🧪 Add error path test for Exception in loadTemplate

[RoiSoleil]

🎯 What: Missing error path test for generic Exception in MockingTemplateLoader.loadTemplate.
📊 Coverage: Added should_log_error_and_add_to_invalid_templates_when_generic_exception_occurs to cover the catch-all Exception block.
✨ Result: Increased reliability and verification of the error handling path for unexpected exceptions during template loading.

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PR created automatically by Jules for task 8602985085122927988 started by @RoiSoleil

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.31%. Comparing base (056906c) to head (728810e).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #241      +/-   ##
============================================
+ Coverage     73.28%   73.31%   +0.03%     
- Complexity     3234     3236       +2     
============================================
  Files           420      420              
  Lines         14435    14445      +10     
  Branches       1266     1266              
============================================
+ Hits          10578    10591      +13     
+ Misses         3325     3322       -3     
  Partials        532      532              

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