feat(scenarios): 支持场景配置加载与首页展示

tests/test_scenarios.py

@@ -0,0 +1,30 @@
+import pytest
+
+from apps.scenarios.services import (
+    ScenarioNotFound,
+    get_scenario,
+    list_scenarios,
+)
+
+
+def test_list_scenarios_loads_five_configs():
+    scenarios = list_scenarios()
+    assert [scenario["id"] for scenario in scenarios] == [
+        "document_review",
+        "knowledge_qa",
+        "quality_analysis",
+        "risk_audit",
+        "ticket_assistant",
+    ]
+
+
+def test_get_scenario_returns_full_agent_config():
+    scenario = get_scenario("quality_analysis")
+    assert scenario["agent"]["role"] == "质量管理专家"
+    assert scenario["rag"]["enabled"] is True
+    assert scenario["output"]["type"] == "quality_report"
+
+
+def test_get_scenario_raises_clear_error_for_missing_id():
+    with pytest.raises(ScenarioNotFound, match="场景不存在"):
+        get_scenario("missing")