System messages show actor name, mentions as objects

src/components/ChatPanel.tsx

@@ -279,7 +279,11 @@ export default function ChatPanel({ chatId, projectSlug }: Props) {
       <div key={msg.id} className="text-sm" style={bgStyle}>
         <div className="flex items-center gap-1 text-xs text-[var(--muted)] mb-0.5">
           <span>{AUTHOR_ICON[msg.author_type] || "👤"}</span>
-          <span className="font-medium">{msg.author_type === "system" ? "System" : (msg.author?.name || msg.author?.slug || "Unknown")}</span>
+          <span className="font-medium">
+            {msg.author_type === "system"
+              ? (msg.actor ? `Система (${msg.actor.name})` : "Система")
+              : (msg.author?.name || msg.author?.slug || "Unknown")}
+          </span>
           <span>·</span>
           <span>{new Date(msg.created_at).toLocaleString("ru-RU", { hour: "2-digit", minute: "2-digit" })}</span>
         </div>

src/lib/api.ts

@@ -147,7 +147,8 @@ export interface Message {
   author: MemberBrief | null;
   content: string;
   thinking: string | null;
-  mentions: string[];
+  mentions: MemberBrief[];
+  actor: MemberBrief | null;
   voice_url: string | null;
   attachments: Attachment[];
   created_at: string;