fix: service integration test, and IRC result reporting

[mvidner]

Problem

1. The job https://github.com/agama-project/agama/actions/workflows/ci-integration-tests.yml has been failing
2. We haven't noticed for 3 months because...? The IRC notification has been failing: LiberaChat started requiring the bot to log in

Solution

1. Make the test more robust by matching structurally, not literally
2. Create a Libera.Chat account for agama-team-bot, document it in our Confluence team space and use it

Testing

• (With /test_using_container.sh) manually run what the CI job does: (cd service; bundle exec rspec --pattern 'test/integration/**_itest.rb')
• modify the workflow file temporarily to trigger a failure that does send an IRC message
• trigger the workflow to show that it does pass
• oops it still fails but in a different repo than this one. done fixing here

Screenshots

No

Documentation

• integration tests: no
• failure reporting: added a Confluence page with the credentials of the new IRC bot

[jreidinger]

to be honest, for me more robust way would be to parse output and check its structure than just relying on certain output format or order

[mvidner]

Fair point, fixed now, thanks!

[mvidner]

Latest manual run on this branch: https://github.com/agama-project/agama/actions/runs/23429593717/job/68152344619

• fixed: backend test failure
• fixed: IRC notifications
• failing still: integration-tests at the frontend

I would still like to merge this, as I'd like to get back to my regular PBI :)