feat: 新增多格式文件上传入库与认证体系

- 新增 JWT 认证模块，支持登录/注册/用户管理
- 新增文件上传接口，支持 .txt/.md/.html/.pdf/.docx 等格式解析入库
- 新增检索结果 AI 总结功能
- 新增文本去重缓存机制
- 新增全局认证夹具简化测试
- 新增配置项与环境变量支持
- 完善文档与测试覆盖

tests/test_query_parser.py

@@ -148,6 +148,69 @@ class TestQueryParserParse:
 
         assert [c.name for c in parsed.categories] == ["财务行政"]
 
+    async def test_parse_new_fields_populated(self):
+        """JSON 含 entities/intent/time_range → 正确填充字段"""
+        response = json.dumps(
+            {
+                "categories": [{"name": "技术文档", "confidence": 0.9}],
+                "rewrite": "如何设计微服务架构",
+                "keywords": ["架构"],
+                "entities": ["微服务", "Kubernetes"],
+                "intent": "操作",
+                "time_range": "2023年",
+            },
+            ensure_ascii=False,
+        )
+        parser = _make_parser(response)
+
+        parsed = await parser.parse("怎么做微服务部署")
+
+        assert parsed.parse_failed is False
+        assert parsed.entities == ["微服务", "Kubernetes"]
+        assert parsed.intent == "操作"
+        assert parsed.time_range == "2023年"
+
+    async def test_parse_new_fields_missing_defaults(self):
+        """JSON 缺 entities/intent/time_range → 降级为默认值，parse_failed=False（向后兼容）"""
+        response = json.dumps(
+            {
+                "categories": [{"name": "技术文档", "confidence": 0.9}],
+                "rewrite": "如何设计架构",
+                "keywords": ["架构"],
+            },
+            ensure_ascii=False,
+        )
+        parser = _make_parser(response)
+
+        parsed = await parser.parse("怎么做架构设计")
+
+        assert parsed.parse_failed is False
+        assert parsed.entities == []
+        assert parsed.intent == ""
+        assert parsed.time_range == ""
+
+    async def test_parse_new_fields_wrong_type_defaults(self):
+        """entities 非列表 / intent 非字符串 / time_range 非字符串 → 置空，parse_failed=False（容错）"""
+        response = json.dumps(
+            {
+                "categories": [{"name": "技术文档", "confidence": 0.9}],
+                "rewrite": "如何设计架构",
+                "keywords": ["架构"],
+                "entities": "微服务",  # 非列表
+                "intent": 123,  # 非字符串
+                "time_range": ["2023"],  # 非字符串
+            },
+            ensure_ascii=False,
+        )
+        parser = _make_parser(response)
+
+        parsed = await parser.parse("怎么做架构设计")
+
+        assert parsed.parse_failed is False
+        assert parsed.entities == []
+        assert parsed.intent == ""
+        assert parsed.time_range == ""
+
 
 class TestDecideRoute:
     """decide_route 纯函数的四个分支"""