Function BuildChannelCatalogNote

BuildChannelCatalogNote(entries: readonly ChannelCatalogEntry[]): string | null
Renders the catalog note for a session's channels.
Parameters
- entries: readonly ChannelCatalogEntry[]
  The session's channels (open and advertised).
Returns string | null
The note text, or null when no channel needs describing (so a legacy-only session sends nothing new).
- Defined in channels/channel-catalog-note.ts:113