完善通用求解器回归与前端交互

- 引入因果坐标内核、热流体恢复和递进长时回归\n- 完善正交连线、线桥、视图保持与结果曲线缩放\n- 补充依赖约束、CI、测试基线和北京时间更新日志

frontend/tests/e2e/component-symbols.spec.ts

@@ -3077,10 +3077,25 @@ test("AMESim canvas nodes use icon anchors and highlight only compatible free po
   await page.locator(".flow-canvas .react-flow__pane").click({
     position: { x: 20, y: 20 },
   });
+  await expect(firstPhysicalOutput).toHaveAttribute(
+    "data-connection-state",
+    "origin",
+  );
+  const manualDraft = page.locator(".flow-canvas .manual-connection-draft");
+  await expect(manualDraft).toBeVisible();
+  await expect(manualDraft.locator(".react-flow__connection-path")).toHaveAttribute(
+    "data-waypoint-count",
+    "1",
+  );
+  await expect(manualDraft.locator(".manual-connection-waypoint")).toHaveCount(1);
+  await expect(page.locator(".flow-canvas .react-flow__edge")).toHaveCount(0);
+  await page.keyboard.press("Escape");
   await expect(firstPhysicalOutput).toHaveAttribute(
     "data-connection-state",
     "idle",
   );
+  await expect(manualDraft).toHaveCount(0);
+
   await compatiblePhysicalPort.click();
   await expect(page.locator(".flow-canvas .react-flow__edge")).toHaveCount(0);
   await expect(compatiblePhysicalPort).toHaveAttribute(
@@ -3094,8 +3109,16 @@ test("AMESim canvas nodes use icon anchors and highlight only compatible free po
   );
 
   await firstPhysicalOutput.click();
+  await page.locator(".flow-canvas .react-flow__pane").click({
+    position: { x: 70, y: 90 },
+  });
+  await expect(manualDraft.locator(".react-flow__connection-path")).toHaveAttribute(
+    "data-waypoint-count",
+    "1",
+  );
   await compatiblePhysicalPort.click();
   await expect(page.locator(".flow-canvas .react-flow__edge")).toHaveCount(1);
+  await expect(manualDraft).toHaveCount(0);
   await expect(firstPhysicalOutput).toHaveAttribute("data-connected", "true");
   await expect(compatiblePhysicalPort).toHaveAttribute("data-connected", "true");
   await expect(firstPhysicalOutput).toHaveCSS("opacity", "0");
@@ -3107,6 +3130,15 @@ test("AMESim canvas nodes use icon anchors and highlight only compatible free po
   await expect(physicalEdge.locator(".edge-endpoint-blocker")).toHaveCount(0);
   await expect(physicalEdge.locator(".react-flow__edge-interaction")).toHaveCount(1);
   await expect(physicalEdge).not.toHaveClass(/editor-edge-contact/);
+  await page.getByRole("button", { name: "保存工程", exact: true }).click();
+  const routedEdge = await page.evaluate(() => {
+    const raw = window.localStorage.getItem(
+      "system-simulation-flow:project:demo-system",
+    );
+    const project = raw ? JSON.parse(raw) : null;
+    return project?.edges?.[0] ?? null;
+  });
+  expect(routedEdge?.data?.routePoints?.length).toBeGreaterThan(0);
 
   await signalOutput.click();
   await expect(signalOutput).toHaveAttribute("data-connection-state", "origin");