2025 12 15 Add Option Editor Collaborative Features

<!-- entry: {"id":"2025-12-15-27-2-inline-combobox-collaborative-trigger-ownership-from-f8b64879","kind":"behavior","migrationNotes":["Move trigger ownership from `getUserId` options to the editor `userId` option."]} -->

• inline-combobox, mention-kit: Read collaborative trigger ownership from editor.meta.userId.
  • Move trigger ownership from getUserId options to the editor userId option.