Add unit tests for pyamber managers (state-processing, exception, console-message, tuple-processing, statistics, ECM)

[Yicong-Huang]

Task Summary

Six DP-thread state managers under amber/src/main/python/core/architecture/managers/ lack dedicated unit tests. Add coverage for state_processing_manager, exception_manager, console_message_manager, tuple_processing_manager, statistics_manager, and embedded_control_message_manager.

Task Type

• Testing / QA