Clarify Qodo PR-Agent invocation and team onboarding requirements #3958

Refine specification 019 in lightspeedwp/.github using the supplied analysis and the reported Claude error, “/review isn't a command here”.

Acceptance criteria:

• Distinguish Claude discovery/invocation, shared-runner use and GitHub PR-comment commands.
• Add traceable onboarding requirements for governance, block plugin and block theme repositories.
• Correct unsupported operational claims and preserve existing pilot-validation work.
• Refine the plan and prepare a dependency-aware /speckit-tasks handoff without resetting completed tasks.
• Document branch docs/spec019-qodo-pr-agent-onboarding-refinement.
• Link the future refinement PR to this issue.

Sources:

• pasted.md
• pasted.md
• aiops: qodo-pr-agent - Add governed pilot and shared integrations #3532
• Specification 019

Scope is specification and onboarding planning refinement; pilot activation, credential changes and live validation remain separate.