Dynamic log reconfiguration and null-safe configuration reading

Dynamic log reconfiguration and null-safe configuration reading: a task in LegoFlow-SWE (Harbor dataset). Currently, changing log levels (including specific logger levels) in the OAP backend requires a full process restart. This disrupts operations and can cause transient issues to disappear…

The task

Currently, changing log levels (including specific logger levels) in the OAP backend requires a full process restart. This disrupts operations and can cause transient issues to disappear, making it extremely difficult to debug production problems when important diagnostic logs are only available at DEBUG level.

Part of Lego-X/LegoFlow-SWE.