Agent Skills: lisa-confluence-write-prd

Creates or idempotently updates a PRD as a Confluence page parented under the configured lifecycle parent page (the draft parent by default, or the ready parent when initial_role is ready so lisa-confluence-prd-intake auto-claims it). The Confluence PRD-source writer behind lisa-prd-source-write. Confluence models PRD state by PARENT PAGE (not labels), per config-resolution. Dedupes by a stable marker embedded in the page body, found via CQL (matched by marker, never by title). All Atlassian access goes through lisa-atlassian-access.