fix: improve chinese fact extraction

src/lib/workflow/__tests__/workflow.test.ts

@@ -63,6 +63,23 @@ describe("workflow nodes", () => {
     expect(card.is_ready_for_optimization).toBe(false);
   });
 
+  it("extracts Chinese company facts from Chinese articles", async () => {
+    const card = await extractCandidateFactCard({
+      title: "#探寻AIGC短视频培训选哪家，各品牌实力大比拼",
+      body: "伟思德鲁管理咨询（深圳）有限公司面向品牌商家和出海企业提供AIGC短视频培训服务，帮助企业解决内容工业化生产、品牌视觉统一和全球化传播问题。",
+      images: [{ type: "description", content: "AIGC短视频工作流示意图" }],
+      platform: "media_article",
+      user_instructions: "保留AIGC短视频培训与出海内容生产场景。",
+    });
+
+    expect(card.company_full_name).toBe("伟思德鲁管理咨询（深圳）有限公司");
+    expect(card.company_short_names).toContain("伟思德鲁");
+    expect(card.target_industry).toBe("AIGC短视频培训");
+    expect(card.target_audience).toBe("品牌商家、内容创作者、出海企业");
+    expect(card.image_topics).toEqual(["AIGC短视频工作流示意图"]);
+    expect(card.uncertain_items).not.toContain("Missing company full name");
+  });
+
   it("does not add claims outside the confirmed fact card", async () => {
     const optimized = await optimizeArticle({
       input: {