Add Jev for DevOps knowledge guide

[AsafMazuz1]

Summary

• Add an original, credited guide to Josh Rosen's complete JevOps article, with four verified source-mentioned catalog connections and generated backlinks.
• Explain the linked studies' task and cost limits, including Cribl's log-classification gap and Jev Logs' very low filtering rate.
• Add a CC0 diagram and an audit-first selective-CI build prompt.

Verification

• Read the full article in the user's logged-in Chrome and checked linked primary sources and exact-title republication searches.
• npm run check passed (Markdown, links, catalog, knowledge validator, offline tests).
• Local JevList sync imported ten guides; hub, guide, Markdown, sitemap, llms.txt, four single backlinks, metadata, desktop and true 390px layout were checked.
• No live TypeSafe, Gateway, GitHub Actions, Kubernetes or deployment test is claimed. The new image URL is expected to load after this public branch merges.