feat: 增强知识库功能，优化索引和RAG检索

server/tests/test_knowledge_rag_service.py

@@ -74,6 +74,28 @@ def test_build_hits_prioritizes_answer_clue_appendix_for_rule_queries() -> None:
     assert [item["candidate_id"] for item in hits] == ["clue-1", "plain-1"]
 
 
+def test_build_hits_demotes_chapter_navigation_for_specific_rule_queries() -> None:
+    hits = KnowledgeRagService._build_hits_from_query_data(
+        query="探亲差旅归哪个部门管理？",
+        chunks=[
+            {
+                "chunk_id": "toc-1",
+                "file_path": "/tmp/doc-1__费用制度.md",
+                "content": "# 章节导航\n\n- 第一章 总则\n- 第二章 职责分工\n- 第三章 支出归口",
+            },
+            {
+                "chunk_id": "body-1",
+                "file_path": "/tmp/doc-1__费用制度.md",
+                "content": "附表3：支出归口管理部门与归口业务范围\n组织人事部：探亲差旅、条件艰苦及安全风险较高区域补助等支出。",
+            },
+        ],
+        entities=[],
+        limit=2,
+    )
+
+    assert [item["candidate_id"] for item in hits] == ["body-1", "toc-1"]
+
+
 def test_resolve_default_qdrant_url_prefers_container_host(monkeypatch) -> None:
     monkeypatch.setattr(
         knowledge_rag_module.socket,
@@ -93,3 +115,29 @@ def test_resolve_default_qdrant_url_falls_back_to_loopback(monkeypatch) -> None:
     monkeypatch.setattr(knowledge_rag_module.socket, "getaddrinfo", raise_lookup_error)
 
     assert knowledge_rag_module._resolve_default_qdrant_url() == "http://127.0.0.1:6333"
+
+
+def test_is_query_ready_status_rejects_failed_status_even_with_chunks() -> None:
+    assert (
+        KnowledgeRagService.is_query_ready_status(
+            {
+                "status": "failed",
+                "chunks_count": 11,
+                "chunks_list": ["chunk-1"],
+            }
+        )
+        is False
+    )
+
+
+def test_is_query_ready_status_rejects_processing_status_even_with_chunks() -> None:
+    assert (
+        KnowledgeRagService.is_query_ready_status(
+            {
+                "status": "processing",
+                "chunks_count": 11,
+                "chunks_list": ["chunk-1"],
+            }
+        )
+        is False
+    )