feat: 知识库更新，优化批量语音转写 - 合并索引 - 增加会话级批量转写处理 - 补充语音转写回归测试

tests/unit/ai-search-evidence.test.ts

@@ -21,6 +21,7 @@ const candidate = (
   endTime: 1_785_895_200_000 + index,
   timestamp: 1_785_895_200_000 + index,
   messageIds: [`message-${index}`],
+  sourceKind: 'text',
   text: `第 ${index} 条去健身相关消息`,
   score: -index,
   ...options
@@ -64,6 +65,12 @@ describe('Final Evidence builder', () => {
     ])
   })
 
+  it('preserves voice source type through Final Evidence', () => {
+    const result = buildFinalEvidence([candidate(1, { sourceKind: 'voice' })], 8)
+
+    expect(result.evidence[0]).toMatchObject({ id: 'E1', sourceKind: 'voice' })
+  })
+
   it('removes citations which do not resolve to Final Evidence', () => {
     const evidence = buildFinalEvidence([candidate(1), candidate(2)], 8).evidence
     const result = sanitizeAnswerCitations('杨伟提到健身。[E1] 另有无效来源。[E10][E23]', evidence)