Use getattr() with default value in get_logentry_model() to handle
cases where conf.py hasn't been imported yet due to import order.
Adds regression test to verify the fix.
* Add CustomLogEntry model support and update tests:
- Added support for CustomLogEntry data model to extend django-auditlog capabilities
- Updated existing test cases to align with new model structure and data handling logic
- Added new test cases to validate CustomLogEntry behavior, model registration, and signal handling
- Ensured backward compatibility with existing LogEntry model where applicable
* Update auditlog/__init__.py
Co-authored-by: Youngkwang Yang <me@youngkwang.dev>
* run only one custom model test matrix (#761)
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Co-authored-by: Youngkwang Yang <me@youngkwang.dev>
