fix: 支持模型异常后继续文档对话

- 将本轮文档上下文纳入可持久化的 Agent 用户消息

=- 在异常提示中提供请重试动作并自动发送继续

easyflow-ui-admin/packages/effects/common-ui/src/components/chat-timeline/ChatErrorNotice.vue

@@ -1,13 +1,30 @@
 <script setup lang="ts">
 defineProps<{
+  actionDisabled?: boolean;
+  actionLabel?: string;
   message: string;
 }>();
+
+const emit = defineEmits<{
+  action: [];
+}>();
 </script>
 
 <template>
   <div class="chat-error-notice" role="alert">
     <span class="chat-error-notice__icon" aria-hidden="true">!</span>
-    <span>{{ message }}</span>
+    <span class="chat-error-notice__content">
+      <span>{{ message }}<template v-if="actionLabel">，</template></span>
+      <button
+        v-if="actionLabel"
+        type="button"
+        class="chat-error-notice__action"
+        :disabled="actionDisabled"
+        @click="emit('action')"
+      >
+        {{ actionLabel }}
+      </button>
+    </span>
   </div>
 </template>
 
@@ -39,4 +56,41 @@ defineProps<{
   border: 1px solid currentColor;
   border-radius: 50%;
 }
+
+.chat-error-notice__content {
+  min-width: 0;
+}
+
+.chat-error-notice__action {
+  padding: 0;
+  margin-left: var(--space-1);
+  font: inherit;
+  font-weight: 600;
+  line-height: inherit;
+  color: currentcolor;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+  cursor: pointer;
+  background: transparent;
+  border: 0;
+  border-radius: var(--el-border-radius-small);
+}
+
+.chat-error-notice__action:hover:not(:disabled) {
+  opacity: 0.8;
+}
+
+.chat-error-notice__action:active:not(:disabled) {
+  opacity: 0.65;
+}
+
+.chat-error-notice__action:focus-visible {
+  outline: 2px solid var(--el-color-primary-light-3);
+  outline-offset: 2px;
+}
+
+.chat-error-notice__action:disabled {
+  cursor: not-allowed;
+  opacity: 0.5;
+}
 </style>