feat: reconcile tool result echoes

tauri/README.md

@@ -74,6 +74,12 @@ M0-01～M0-08 已完成。Mac 经 Linux Tailscale Web Host `http://100.121.118.1
 
 Conversation Store v5 持久化任务快照，刷新或重新登录后仍只显示任务最新状态。尚未创建取消 outbox、尚未发送任何网络事件、尚未实现 result echo 或 Hermes Adapter 契约。`npm test` 当前为 4 个文件 / 22 个测试通过，`npm run build` 通过。
 
+### M1-05 `tool.result` 回声（已完成）
+
+每张可信 Tool Call 卡片均以 `call_id` 建立展示索引。同步到达的合法 `tool.result` 或 `tool.cancel` 只会更新同一张 choice / confirm / input 卡片的最终状态，并禁用控件；它们不会再被渲染为独立系统消息或“不支持的 Agent 内容”。未关联到本地卡片的 result/cancel 保持无展示副作用。
+
+本项没有接入 Adapter 的实际发送、Agent 侧幂等消费或审计；这些是 M1-06 的唯一范围。`npm test` 当前为 4 个文件 / 22 个测试通过，`npm run build` 通过。
+
 ### 当前结构债务（M0 的改造对象）
 
 `src/main.ts` 目前包含 App Shell、页面 DOM、会话 cursor、同步循环与 Runtime 编排；M0-05 已将登录、发送与同步 HTTP `fetch` 迁入 `src/runtime/transport-adapter.ts`，M0-06 已将所有可信 DOM renderer 迁入 `src/runtime/trusted-dom-renderers.ts`。在 M0 准入前不新增 Surface 或 Capability 功能。

tauri/src/runtime/trusted-dom-renderers.ts

@@ -35,6 +35,7 @@ export type TaskInteractionHandlers = {
 export class TrustedDOMRendererContext {
   private thinking: HTMLElement | undefined;
   private readonly userRows = new Map<string, HTMLElement>();
+  private readonly toolCards = new Map<string, { card: HTMLElement; status: HTMLElement; controls: readonly (HTMLButtonElement | HTMLInputElement | HTMLTextAreaElement)[] }>();
   private readonly taskCards = new Map<string, { card: HTMLElement; title: HTMLElement; progress: HTMLProgressElement; status: HTMLElement; cancel: HTMLButtonElement }>();
   private readonly expirationTimers = new Set<number>();
 
@@ -48,6 +49,7 @@ export class TrustedDOMRendererContext {
   public reset(): void {
     this.thinking = undefined;
     this.userRows.clear();
+    this.toolCards.clear();
     this.taskCards.clear();
     for (const timer of this.expirationTimers) window.clearTimeout(timer);
     this.expirationTimers.clear();
@@ -107,11 +109,15 @@ export class TrustedDOMRendererContext {
   }
 
   public renderToolResult(item: Extract<ConversationItem, { kind: "tool-result" }>): void {
-    this.renderSystemMessage(`收到工具调用结果（${item.result.call_id} · ${item.result.status}）。`);
+    const entry = this.toolCards.get(item.result.call_id);
+    if (!entry) return;
+    this.updateToolCardFinal(entry, item.result.status, item.result.error);
   }
 
   public renderToolCancel(item: Extract<ConversationItem, { kind: "tool-cancel" }>): void {
-    this.renderSystemMessage(`工具调用已取消（${item.cancel.call_id}）。`);
+    const entry = this.toolCards.get(item.cancel.call_id);
+    if (!entry) return;
+    this.updateToolCardFinal(entry, "cancelled", item.cancel.reason);
   }
 
   public renderSurface(item: Extract<ConversationItem, { kind: "surface" }>): void {
@@ -286,6 +292,7 @@ export class TrustedDOMRendererContext {
     card.append(heading, detail, actions);
     if (group.mode === "multi-choice") card.append(submitButton);
     card.append(status);
+    this.toolCards.set(call.call_id, { card, status, controls: buttons });
     this.messages.append(card);
     this.scheduleExpiry(card, status, call, buttons);
     this.scrollLatest();
@@ -323,6 +330,7 @@ export class TrustedDOMRendererContext {
     });
     actions.append(approve, cancel);
     card.append(heading, detail, actions, status);
+    this.toolCards.set(call.call_id, { card, status, controls: buttons });
     this.messages.append(card);
     this.scheduleExpiry(card, status, call, buttons);
     this.scrollLatest();
@@ -387,6 +395,7 @@ export class TrustedDOMRendererContext {
     actions.append(submit, cancel);
     nativeForm.append(errors, actions);
     card.append(heading, detail, nativeForm, status);
+    this.toolCards.set(call.call_id, { card, status, controls });
     this.messages.append(card);
     this.scheduleExpiry(card, status, call, controls);
     this.scrollLatest();
@@ -432,6 +441,18 @@ export class TrustedDOMRendererContext {
     status.textContent = "该交互已结束或已提交";
   }
 
+  private updateToolCardFinal(entry: { card: HTMLElement; status: HTMLElement; controls: readonly (HTMLButtonElement | HTMLInputElement | HTMLTextAreaElement)[] }, finalStatus: "completed" | "failed" | "cancelled" | "expired", error?: string): void {
+    entry.card.dataset.status = finalStatus;
+    entry.status.textContent = finalStatus === "completed"
+      ? "已完成"
+      : finalStatus === "cancelled"
+        ? "已取消"
+        : finalStatus === "expired"
+          ? "该交互已过期"
+          : `处理失败${error ? `：${error}` : ""}`;
+    for (const control of entry.controls) control.disabled = true;
+  }
+
   private showThinking(detail: string): void {
     this.thinking?.remove();
     this.thinking = this.appendBubble("agent", detail);