@claude - Let's update the Mattermost Product Documentation to note that mobile users can now select custom emojis and apply custom skin tones from Mattermost mobile v2.37.0 onward captured via Engineering PR #9278 (evidence: milestone.title from PR metadata).

Scope & constraints:

• In scope: Single-sentence capability note added to existing emoji documentation
• Out of scope (non-editable): Changelogs, important upgrade notes, version archive, removed/deprecated features, unsupported legacy releases
• Bounded to: Custom emoji selection capability only - not implementation details, UI components, or platform-specific workflows

Required doc touchpoints:

Identify existing emoji selection/usage documentation pages (likely: "Using emojis" or "Compose messages" user guides) and:

• Verify current docs don't incorrectly state mobile can't access custom emojis
• Add capability reference with version

Task (End User):

Add one sentence noting mobile custom emoji support from v2.37.0. Example placement: in existing emoji documentation, add "From Mattermost mobile v2.37.0, you can select custom emojis and apply custom skin tones on mobile devices."

Output requirements:

• List of documentation pages updated (identify existing emoji docs)
• Before/after text showing one-sentence addition
• Confirmation no incorrect mobile limitations remain in docs