feat: 完成 issue #74 [Ti-1] 报警解释 Prompt 模板与 RAG 接入

templates/ti-cl4/llm-scenarios/tests/test_scenarios.py

@@ -105,6 +105,21 @@ class TestScenariosE2E(unittest.TestCase):
         self.assertIn("来源", result.answer)
         self.assertEqual(result.route.target, RouteTarget.LOCAL)
 
+    def test_explain_alarm_rag_sop_only(self):
+        """报警解释 RAG 接入（issue #74）：只检索 sop 知识域并回显来源。"""
+        result = self.runner.explain_alarm("炉温超上限报警怎么处理")
+        # 演示库 sop 类目（异常处置SOP）应被检索到并随答案溯源
+        self.assertIn("SOP", result.answer)
+
+    def test_explain_alarm_min_score_fallback(self):
+        """检索阈值（issue #74）：低分视为未命中 → 降级提示人工确认。"""
+        # 注入高 min_score 配置：正常演示库检索得分低于阈值 → 降级
+        runner = TiScenarioRunner(alarm_config={
+            "rag": {"categories": ["sop"], "top_k": 3, "min_score": 99.0},
+        })
+        result = runner.explain_alarm("炉温超上限报警怎么处理")
+        self.assertIn("人工确认", result.answer)
+
     def test_shift_handover(self):
         result = self.runner.generate_handover("甲班：生产平稳，炉温正常，无异常事项")
         self.assertTrue(result.answer)