[Bug] `enable_audit_log` configuration not taking effect - always shows false despite correct setup

[advccyang]

Search before asking

• [x] I searched in the issues and found nothing similar.

Version

• Versions Tested: 2.0.5, 2.0.4, 2.0.3, 1.3.4-1 (standalone mode)
• Deployment: Docker (apache/iotdb:*-standalone images)

Describe the bug and provide the minimal reproduce step

1. Set configuration via environment variable or in iotdb-system.properties:

environment:
  - enable_audit_log=true

2. Check runtime configuration:

docker logs iotdb-service 2>&1 | grep -i "enableAuditLog"

What did you expect to see?

Expected:

enableAuditLog=true;

What did you see instead?

Actual:

enableAuditLog=false;

Anything else?

1. Configuration file contains enable_audit_log=true correctly
2. Startup log shows: append enable_audit_log=true /iotdb/conf/iotdb-system.properties
3. But runtime always shows: enableAuditLog=false;
4. Audit log file /iotdb/logs/log_datanode_audit.log is created but remains empty

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!

[github-actions[bot]]

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