Store log lines as rows in a table

[stuartc]

Details

Currently logs are persisted in a single column as an array of strings.

By moving logs into a separate table we:

• Gain the ability to persist logs more easily as they arrive.
• Filter and tag individual lines by prefixes or by STDOUT/STDERR.
• Have individual timestamps for each line.
• Make accessing Runs more efficient by not having to remember to not load the logs every time.

Implementation notes

Release notes

User acceptance criteria