create mode 100644 apps/web/src/components/chat/composerMentionDrag.test.ts
 create mode 100644 apps/web/src/components/chat/composerMentionDrag.ts
 create mode 100644 apps/web/src/components/files/fileTreeDragMention.test.ts
 create mode 100644 apps/web/src/components/files/fileTreeDragMention.ts