Function formatFileSize

frontend/src/components/ChatWindow.jsx:110–115

(bytes)

  }

  const formatFileSize = (bytes) => {
    if (!bytes) return 'Unknown size'
    if (bytes < 1024) return `${bytes} B`
    if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`
    return `${(bytes / (1024 * 1024)).toFixed(1)} MB`
  }

  const getFileIcon = (file) => {
    const ext = file.name?.split('.').pop()?.toLowerCase()