高温氦气物性补全；三通四通能量计算bug修正

frontend/tests/e2e/edge-interactions.spec.ts

@@ -2,7 +2,7 @@ import { expect, test, type Locator, type Page } from "@playwright/test";
 
 import { prepareApp, wideProject } from "./fixtures";
 
-const PROJECT_KEY = "system-simulation-flow:project:demo-system";
+const PROJECT_KEY = "system-simulation-flow:autosave";
 
 test.beforeEach(async ({ page }) => {
   await prepareApp(page);
@@ -316,7 +316,7 @@ test("选中正交连接线不显示拐点，仍可拖动线段、撤销并保
   };
   await page.addInitScript((storedProject) => {
     window.localStorage.setItem(
-      "system-simulation-flow:project:demo-system",
+      "system-simulation-flow:autosave",
       JSON.stringify(storedProject),
     );
   }, project);
@@ -447,7 +447,7 @@ test("选中正交连接线不显示拐点，仍可拖动线段、撤销并保
 test("缩小画布后连接线端点仍与端口图标边缘对齐", async ({ page }) => {
   await page.addInitScript((storedProject) => {
     window.localStorage.setItem(
-      "system-simulation-flow:project:demo-system",
+      "system-simulation-flow:autosave",
       JSON.stringify(storedProject),
     );
   }, wideProject);
@@ -552,7 +552,7 @@ for (const route of [
     };
     await page.addInitScript((storedProject) => {
       window.localStorage.setItem(
-        "system-simulation-flow:project:demo-system",
+        "system-simulation-flow:autosave",
         JSON.stringify(storedProject),
       );
     }, project);
@@ -688,7 +688,7 @@ test("同一组件不同端口发出的线路在远端交叉时仍显示跨线
   };
   await page.addInitScript((storedProject) => {
     window.localStorage.setItem(
-      "system-simulation-flow:project:demo-system",
+      "system-simulation-flow:autosave",
       JSON.stringify(storedProject),
     );
   }, project);