feat: FastAPI+SSE API server, JRXML auto-reorder, session integrity fixes

tests/test_agent.py

@@ -57,7 +57,7 @@ class TestAcceptanceScenarios:
         state["stage"] = "initial_generation"
 
         final = run_graph(graph, state)
-        assert final.get("retry_count", 0) <= 3, "不应超过最大重试次数"
+        assert final.get("retry_count", 0) <= 5, "不应超过最大重试次数"
         print(f"场景 2 状态: {final.get('status')}, 重试次数: {final.get('retry_count', 0)}")
 
     def test_scenario3_multi_turn_modification(self, graph):
@@ -128,8 +128,8 @@ class TestAcceptanceScenarios:
         state = create_initial_state()
         state["current_jrxml"] = "<invalid>xml<<<"
         state["user_input"] = "Fix this"
-        state["retry_count"] = 3  # 已达到最大重试次数
+        state["retry_count"] = 5  # 已达到最大重试次数
         state["status"] = "fail"
 
         final = run_graph(graph, state)
-        assert final.get("retry_count", 0) >= 3 or final.get("status") == "pass"
+        assert final.get("retry_count", 0) >= 5 or final.get("status") == "pass"