fix: connector label editing (#12282)

Fixes [BS-3373](https://linear.app/affine-design/issue/BS-3373/connector%E7%9A%84%E5%8F%8C%E5%87%BB%E6%B7%BB%E5%8A%A0note%E8%A1%8C%E4%B8%BA%E5%8F%97%E5%88%B0%E4%BA%86%E8%A6%86%E7%9B%96%E8%8C%83%E5%9B%B4%E7%9A%84%E5%BD%B1%E5%93%8D)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Connector label elements now include identity and creator metadata.

- **Bug Fixes**
  - Improved hit-testing for pointer interactions, resulting in more accurate detection of hovered elements.

- **Refactor**
  - Enhanced internal comparison logic for elements, improving sorting and ordering consistency.
  - Strengthened type definitions for search filters, improving result accuracy and clarity.

- **Tests**
  - Added end-to-end tests to verify correct label entry and retrieval for multiple connectors.
  - Introduced utility functions to fetch connector labels and improved connector creation in test actions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tests/blocksuite/e2e/edgeless/connector/label.spec.ts

@@ -6,6 +6,7 @@ import {
   createShapeElement,
   dragBetweenViewCoords,
   edgelessCommonSetup as commonSetup,
+  getConnectorLabel,
   locatorComponentToolbar,
   setEdgelessTool,
   Shape,
@@ -332,4 +333,30 @@ test.describe('connector label with straight shape', () => {
     await type(page, 'c');
     await assertEdgelessCanvasText(page, 'c');
   });
+
+  test('should enter the correct label', async ({ page }) => {
+    await commonSetup(page);
+    const connector1 = await addBasicConnectorElement(
+      page,
+      { x: 100, y: 200 },
+      { x: 300, y: 300 }
+    );
+    const connector2 = await addBasicConnectorElement(
+      page,
+      { x: 300, y: 200 },
+      { x: 100, y: 300 }
+    );
+
+    await page.mouse.dblclick(155, 207);
+    await type(page, 'Connector 1');
+    await page.keyboard.press('Escape');
+
+    expect(await getConnectorLabel(page, connector1)).toBe('Connector 1');
+
+    await page.mouse.dblclick(245, 207);
+    await type(page, 'Connector 2');
+    await page.keyboard.press('Escape');
+
+    await expect(await getConnectorLabel(page, connector2)).toBe('Connector 2');
+  });
 });