Python内核代码移除，建模界面缩放bug修复

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

@@ -3319,7 +3319,7 @@ test("端口图标随画布缩小且物理端口始终保持标准圆形", async
           ?.map(Number) ?? [];
       return values[0] ?? 1;
     });
-  const readPortShapes = async () => {
+  const readPortShapes = async (currentZoom: number) => {
     const shapes = await scalablePorts.evaluateAll((elements) =>
       elements.map((element) => {
         const handleBounds = element.getBoundingClientRect();
@@ -3352,8 +3352,8 @@ test("端口图标随画布缩小且物理端口始终保持标准圆形", async
       }),
     );
     for (const shape of shapes) {
-      expect(Math.abs(shape.handleWidth - 6)).toBeLessThan(0.05);
-      expect(Math.abs(shape.handleHeight - 6)).toBeLessThan(0.05);
+      expect(Math.abs(shape.handleWidth - 6 * currentZoom)).toBeLessThan(0.1);
+      expect(Math.abs(shape.handleHeight - 6 * currentZoom)).toBeLessThan(0.1);
       expect(shape.glyphWidth).not.toBeNull();
       expect(shape.glyphHeight).not.toBeNull();
       expect(Math.abs(shape.glyphWidth! - shape.glyphHeight!)).toBeLessThan(0.01);
@@ -3371,7 +3371,10 @@ test("端口图标随画布缩小且物理端口始终保持标准圆形", async
     return shapes;
   };
   const initialZoom = await readViewportZoom();
-  const initialShapes = await readPortShapes();
+  const initialShapes = await readPortShapes(initialZoom);
+  const initialPortStyles = await scalablePorts.evaluateAll((elements) =>
+    elements.map((element) => element.getAttribute("style")),
+  );
   for (const shape of initialShapes) {
     expect(Math.abs(shape.glyphWidth! - 6 * initialZoom)).toBeLessThan(0.05);
     expect(Math.abs(shape.glyphHeight! - 6 * initialZoom)).toBeLessThan(0.05);
@@ -3391,7 +3394,23 @@ test("端口图标随画布缩小且物理端口始终保持标准圆形", async
     .poll(async () => (await readViewportZoom()) / initialZoom)
     .toBeLessThan(0.7);
   const zoomedZoom = await readViewportZoom();
-  const zoomedShapes = await readPortShapes();
+  await expect
+    .poll(async () => {
+      const hitScale = await page
+        .locator(".flow-canvas")
+        .evaluate((element) =>
+          Number(
+            element.style.getPropertyValue("--port-handle-hit-scale"),
+          ),
+        );
+      return Math.abs(hitScale - 1 / zoomedZoom);
+    })
+    .toBeLessThan(0.02);
+  const zoomedShapes = await readPortShapes(zoomedZoom);
+  const zoomedPortStyles = await scalablePorts.evaluateAll((elements) =>
+    elements.map((element) => element.getAttribute("style")),
+  );
+  expect(zoomedPortStyles).toEqual(initialPortStyles);
   const zoomRatio = zoomedZoom / initialZoom;
   for (const [index, shape] of zoomedShapes.entries()) {
     expect(Math.abs(shape.glyphWidth! - 6 * zoomedZoom)).toBeLessThan(0.1);
@@ -3400,6 +3419,25 @@ test("端口图标随画布缩小且物理端口始终保持标准圆形", async
       Math.abs(shape.glyphWidth! / initialShapes[index].glyphWidth! - zoomRatio),
     ).toBeLessThan(0.02);
   }
+
+  // 可见端口随画布缩小，但透明命中区仍保持易于点击的屏幕尺寸。
+  const firstZoomedPort = scalablePorts.first();
+  const firstZoomedPortBounds = await firstZoomedPort.boundingBox();
+  expect(firstZoomedPortBounds).not.toBeNull();
+  const hitPortName = await page.evaluate(
+    ({ x, y }) =>
+      document
+        .elementFromPoint(x, y)
+        ?.closest(".port-handle")
+        ?.getAttribute("data-port-name") ?? null,
+    {
+      x: firstZoomedPortBounds!.x - 3,
+      y: firstZoomedPortBounds!.y + firstZoomedPortBounds!.height / 2,
+    },
+  );
+  expect(hitPortName).toBe(
+    await firstZoomedPort.getAttribute("data-port-name"),
+  );
 });
 
 test("放大画面后接触吸附仍保留足够的画布判定半径", async ({ page }) => {