Interface ChatMessage

interface ChatMessage {
    attachments: ChatAttachment[];
    content: string;
    content_type: "text" | "file";
    conversation_id: string;
    created_at: string;
    delivery_error?: string | null;
    delivery_status?: "pending" | "sent" | "failed" | null;
    id: string;
    kind: "message";
    metadata?: Record<string, unknown>;
    read_at?: string | null;
    sender_id: string | null;
    sender_name?: string | null;
    sender_type: ChatSenderType;
    seq: number;
    visibility: "public" | "private";
}