Jira labels

The labels the agent skills read and write on AXC issues.

Label	Meaning
`ready-for-agent`	Published by `/spec`; `/build` may implement it unattended.
`needs-info`	`/build` opened the PR unfinished or with unresolved findings; a human decides.
`triaged`	Checked against `styleguide/backlog.md`; `/triage` skips it. Remove it to re-triage.
`outdated`	`/triage` found evidence the ticket is obsolete; closing it is a separate decision.

Labels