fix(serve): enable file logging for HTTP API sessions via file_logconfig field

[kun-codes]

Before this PR, no log files were being written to using optics serve.
After this PR, file logging can be enabled using "file_log": true, in request body for POST {{baseUrl}}/v1/sessions/start

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull request overview

This PR extends the FastAPI session-start endpoint configuration model so HTTP API callers can enable file-based logging per session via a new file_log boolean field.

Changes:

• Add file_log: bool = False to the REST SessionConfig model.
• Pass file_log into the internal Config used to create a session.

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[malto101]

how to do you plan to fetch the file logs from containers?

[kun-codes]

@malto101 How about using docker volume mounts to store the logs from the container on the host system? when file_log is set to true, they will get stored on the host system.

And when file logging isn't required, logs go to stderr which can be read through docker logs command

[malto101]

@malto101 How about using docker volume mounts to store the logs from the container on the host system? when file_log is set to true, they will get stored on the host system.

And when file logging isn't required, logs go to stderr which can be read through docker logs command

That works, just double check if there's a export logs option in docker or other container services so we do not duplicate work

[kun-codes]

@malto101 docker logs <container_name> > logs.txt 2>&1 can be used to export logs in docker. For podman the command is podman logs <container_name> > logs.txt 2>&1

[malto101]

@malto101 docker logs <container_name> > logs.txt 2>&1 can be used to export logs in docker. For podman the command is podman logs <container_name> > logs.txt 2>&1

right,
if a soln existing, we can use it,