C内核流量计算方法优化，前端文件名称读取优化

frontend/tests/e2e/parameter-table.spec.ts

@@ -210,8 +210,8 @@ test("组件参数和仿真设置使用共享的三列表格", async ({ page })
   const solver = page.getByLabel("求解器", { exact: true });
   await expect(solver).toHaveCSS("text-align", "right");
   await expect(solver).toHaveCSS("text-align-last", "right");
-  await solver.selectOption("Radau");
-  await expect(solver).toHaveValue("Radau");
+  await solver.selectOption("RK45");
+  await expect(solver).toHaveValue("RK45");
 });
 
 test("通用离散选项按多条件控制参数行且保留隐藏值和未知旧值", async ({