Ticket: TINYDOC-3570 (TINYMCE-14747)

Site: Staging

Changes:

• Added release note entry for TINYMCE-14747 to modules/ROOT/pages/8.9.0-release-notes.adoc (Accompanying Premium plugin changes, TinyMCE AI): New commands for running reviews.
• Documented the eleven new review commands in modules/ROOT/partials/commands/tinymceai-cmds.adoc, added as rows to the existing TinyMCE AI plugin commands table (staging).
• Added a Values for TinyMCEAIReviewCustom subsection covering the three accepted third-argument forms (prompt string, { prompt, model, name }, and { id, value } for integrator-defined reviews), including the error handling for invalid values.

Pre-checks:

• Branch is correctly prefixed (release-note branch)
• Files have been included where required (if applicable).
• Files added for New product features include a release note entry.
• Build passes without console errors, warnings, or issues.

Review:

• Documentation Team Lead has reviewed.