docs: record wp-cli-pattern-validate extraction and publish

[jasperf]

Summary

docs/wp-cli-package-evaluation.md described extracting wp-cli-pattern-validate.php into its own package repo as pending work. It's done — this brings the doc in line with reality.

Changes

• Marked the extraction and publish steps done in the recommendation, effort table, and status line.
• Recorded the new repo: imagewize/wp-cli-pattern-validate, tagged v1.0.0.
• Noted that wp package install imagewize/wp-cli-pattern-validate already works today via WP-CLI's GitHub-shorthand resolution — no separate registry submission needed. Listing on the WP-CLI package index is optional follow-up, not a blocker.
• Clarified that wp-ops keeps its own copy of the command as the source of truth for the wp-ops/trellis ops invocation path; the new repo is a second distribution channel, not a move.

Files

• docs/wp-cli-package-evaluation.md