sync update from LAN repo (source ji @ 85078a31)

frontend-web/src/core/llmwiki/answer-display.test.ts

@@ -0,0 +1,44 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+// Node's type-stripping runner requires the explicit TypeScript suffix.
+// @ts-expect-error The application compiler intentionally uses extensionless imports.
+import * as answerDisplay from "./answer-display.ts";
+
+const { stripKnowledgeRetrievalDiagnostics } = answerDisplay;
+
+test("removes the inline partial-retrieval notice from a historical answer", () => {
+  const content = [
+    "## 回答",
+    "这是基于 Wiki 的结论。[1]",
+    "",
+    "**资料不足与检索局限说明：** 本轮仅有部分检索通道成功（VECTOR_UNAVAILABLE），检索结果可能不完整。",
+  ].join("\n");
+
+  assert.equal(
+    stripKnowledgeRetrievalDiagnostics(content),
+    "## 回答\n这是基于 Wiki 的结论。[1]",
+  );
+});
+
+test("removes a multi-line diagnostic section without changing the answer", () => {
+  const content = [
+    "正文第一段。",
+    "",
+    "### 资料不足与检索局限说明",
+    "本轮只有部分检索通道成功。",
+    "- 内部错误码：VECTOR_UNAVAILABLE",
+    "",
+    "正文第二段。",
+  ].join("\n");
+
+  assert.equal(
+    stripKnowledgeRetrievalDiagnostics(content),
+    "正文第一段。\n\n正文第二段。",
+  );
+});
+
+test("leaves ordinary assistant content unchanged", () => {
+  const content = "向量检索不可用时，可以继续使用关键词检索。";
+  assert.equal(stripKnowledgeRetrievalDiagnostics(content), content);
+});