CnRoadmapItem

Single roadmap card. Renders one GitHub issue: title (links to html_url in a new tab), submitter avatar + login, reaction count, relative created time, sanitized markdown body, and filtered label chips.

Security

• Markdown body flows through cnRenderMarkdown() → DOMPurify.sanitize() using the exported SAFE_MARKDOWN_DOMPURIFY_CONFIG. v-html is bound ONLY on the sanitized output; raw item.body is never templated.
• Label chips are filtered through ROADMAP_LABEL_BLOCKLIST so hydra workflow labels (build:queued, code-review:running, etc.) never appear in the UI.
• External links use target="_blank" rel="noopener noreferrer".

Reference

• Spec: openspec/changes/add-features-roadmap-menu/specs/features-roadmap-component/spec.md → Requirement "CnRoadmapItem"
• Implementation: src/components/CnRoadmapItem/CnRoadmapItem.vue
• Related utilities: SAFE_MARKDOWN_DOMPURIFY_CONFIG, ROADMAP_LABEL_BLOCKLIST