feat(iteration): implement sdk v1 miniapp runtime loop

tauri/src/core-apps/chat/chat-app-host.ts

@@ -30,6 +30,7 @@ export type MountedChatApp = {
   messages: HTMLElement;
   loginView: HTMLElement;
   chatView: HTMLElement;
+  appSessions: HTMLElement;
   presence: HTMLElement;
   rendererContext: TrustedDOMRendererContext;
   rendererRegistry: RendererRegistry<TrustedDOMRendererContext>;
@@ -51,6 +52,7 @@ export function mountChatApp(
   const messages = query<HTMLElement>(root, "#messages");
   const loginView = query<HTMLElement>(root, "#login-view");
   const chatView = query<HTMLElement>(root, "#chat-view");
+  const appSessions = query<HTMLElement>(root, "#app-sessions");
   const presence = query<HTMLElement>(root, "#presence");
   const rendererContext = new TrustedDOMRendererContext(
     messages,
@@ -68,6 +70,7 @@ export function mountChatApp(
     messages,
     loginView,
     chatView,
+    appSessions,
     presence,
     rendererContext,
     rendererRegistry,

tauri/src/core-apps/chat/chat-shell.ts

@@ -19,6 +19,7 @@ export function mountChatShell(root: HTMLElement): void {
       </section>
       <section id="chat-view" class="chat-view" hidden>
         <header class="chat-header"><div class="agent"><span class="avatar">✦</span><div><strong>AI Agent</strong><small id="presence">正在连接…</small></div></div><div><button id="surface-demo" class="quiet" type="button">启用任务面板</button><button id="logout" class="quiet">退出</button></div></header>
+        <section id="app-sessions" class="app-sessions" aria-label="应用子会话"></section>
         <section id="messages" class="messages" aria-live="polite"></section>
         <form id="message-form" class="composer"><textarea id="message-input" rows="1" placeholder="问问你的 AI 搭档…"></textarea><button id="send" type="submit">发送</button></form>
       </section>

tauri/src/core-apps/chat/trusted-dom-renderers.ts

@@ -12,6 +12,7 @@ import type {
   ConversationItem,
   DeliveryState,
   InputForm,
+  NoticeDefinition,
   JsonObject,
   ToolCallRequest,
 } from "@/runtime/protocol/lineup-v1";
@@ -168,6 +169,10 @@ export class TrustedDOMRendererContext {
 
   public renderToolCall(item: Extract<ConversationItem, { kind: "tool-call" }>): void {
     const record = this.toolInteractions?.read(item.call.call_id);
+    if (item.call.tool === "notice" && item.call.notice) {
+      this.renderNoticeCard(item.call, item.call.notice);
+      return;
+    }
     if (item.call.tool === "choice" && item.call.action_group) {
       this.renderActionGroup(item.call, item.call.action_group, record);
       return;
@@ -183,6 +188,30 @@ export class TrustedDOMRendererContext {
     this.renderSystemMessage("收到无法安全展示的标准交互请求。");
   }
 
+  private renderNoticeCard(call: ToolCallRequest, notice: NoticeDefinition): void {
+    const card = document.createElement("article");
+    card.className = "tool-card notice-card";
+    card.dataset.callId = call.call_id;
+    const heading = document.createElement("strong");
+    heading.textContent = call.title || "提示";
+    const detail = document.createElement("p");
+    detail.textContent = notice.message;
+    const status = document.createElement("small");
+    status.className = "tool-card-status";
+    status.textContent = notice.dismiss_label ?? "已收到";
+    card.append(heading, detail, status);
+    this.toolCards.set(call.call_id, { card, status, controls: [] });
+    this.messages.append(card);
+    this.scrollLatest();
+    // Toast is only an additional short reminder; the durable IM card above remains.
+    const toast = document.createElement("div");
+    toast.className = "notice-toast";
+    toast.textContent = notice.message;
+    toast.setAttribute("role", "status");
+    this.messages.parentElement?.append(toast);
+    globalThis.setTimeout(() => toast.remove(), 4_000);
+  }
+
   public renderToolResult(item: Extract<ConversationItem, { kind: "tool-result" }>): void {
     const entry = this.toolCards.get(item.result.call_id);
     if (!entry) return;