fix: 收紧LLM输出格式提示

src/lib/llm/__tests__/prompts.test.ts

@@ -47,6 +47,14 @@ describe("LLM prompt builders", () => {
     expect(prompt).toContain("图片主题");
   });
 
+  it("fact extraction prompt explicitly forbids object items in string arrays", () => {
+    const prompt = `${FACT_EXTRACTOR_SYSTEM_PROMPT}\n${buildFactExtractorPrompt(articleInput)}`;
+
+    expect(prompt).toContain("uncertain_items must be string[]");
+    expect(prompt).toContain("core_claims must be string[]");
+    expect(prompt).toContain("Do not return objects inside string arrays");
+  });
+
   it("article optimizer prompt includes platform templates and Chinese output rules", () => {
     const prompt = `${ARTICLE_OPTIMIZER_SYSTEM_PROMPT}\n${buildArticleOptimizerPrompt(articleInput, factCard)}`;
 
@@ -60,6 +68,14 @@ describe("LLM prompt builders", () => {
     expect(prompt).toContain("forbidden_claims");
   });
 
+  it("article optimizer prompt explicitly describes optional array shapes", () => {
+    const prompt = `${ARTICLE_OPTIMIZER_SYSTEM_PROMPT}\n${buildArticleOptimizerPrompt(articleInput, factCard)}`;
+
+    expect(prompt).toContain("changed_sections must be string[]");
+    expect(prompt).toContain("requires_user_confirmation must be string[]");
+    expect(prompt).toContain("image_suggestions must be []");
+  });
+
   it("quality inspector prompt encodes fail and warn standards for all risk gates", () => {
     const prompt = `${QUALITY_INSPECTOR_SYSTEM_PROMPT}\n${buildQualityInspectorPrompt({
       article: {
@@ -92,6 +108,35 @@ describe("LLM prompt builders", () => {
     expect(prompt).toContain("warn 标准");
   });
 
+  it("quality inspector prompt explicitly describes enum outputs", () => {
+    const prompt = `${QUALITY_INSPECTOR_SYSTEM_PROMPT}\n${buildQualityInspectorPrompt({
+      article: {
+        title: "伟思德鲁 AIGC短视频培训",
+        summary: "官网文章摘要",
+        body_markdown: "正文",
+        image_suggestions: [],
+        changed_sections: [],
+        requires_user_confirmation: [],
+      },
+      factCard,
+      platform: "official_site",
+      deterministicChecks: [
+        {
+          rule_id: "title_quality",
+          status: "pass",
+          evidence: "标题自然",
+          reason: "本地规则通过",
+          suggested_fix: "",
+          target_agent: null,
+        },
+      ],
+    })}`;
+
+    expect(prompt).toContain("status must be one of pass, warn, fail");
+    expect(prompt).toContain("rule_id must reuse the exact English rule_id");
+    expect(prompt).toContain("target_agent must be title, body, fact_card, or null");
+  });
+
   it("targeted rewrite prompt gives rule-specific repair actions", () => {
     const prompt = `${TARGETED_REWRITER_SYSTEM_PROMPT}\n${buildTargetedRewritePrompt({
       article: {