Standardizing Log Path: Migrating chat Service Startup Logs to _output/logs

[cubxxw]

This PR focuses on enhancing our log management system, particularly by adjusting the startup log path for the chat service. Previously, the startup logs for the chat service were located in the logs/ directory. This setup caused inconsistencies in path management and inconveniences in maintenance. To address this issue, we have decided to migrate the chat startup log path to _output/logs.

This change aligns the chat service's log path with that of our openim-server, unifying our project's log management approach. It also makes log storage and access more intuitive and efficient. This update is aimed at simplifying our log maintenance efforts and providing a more convenient path for future log analysis.

Link: #398

Key changes include:

1. Modifying the log path configuration for the chat service from logs/ to _output/logs.
2. Ensuring all related documentation and configuration files reflect this path change.
3. Conducting necessary testing to ensure the effectiveness and stability of the new log path.