docs(skills): teach native fleet correlation

[rldyourmnd]

Summary

• teach fleet audit, run triage and performance verification the native OpenObserve job/trace fields
• join job-start, queue UUID, provider lifecycle and Incus member by runner identity
• distinguish healthy direct-JIT from genuinely incomplete request correlation
• prevent agents from attributing compute placement to the services host

Verification

• skill-creator quick validation for all three skills
• go test ./core/skills
• go test ./core/cli
• git diff --check