feat: improve grouping perf in edgeless (#14442)

fix #14433 

#### PR Dependency Tree


* **PR #14442** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

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

* **New Features**
  * Level-of-detail thumbnails for large images.
  * Adaptive pacing for snapping, distribution and other alignment work.
  * RAF coalescer utility to batch high-frequency updates.
  * Operation timing utility to measure synchronous work.

* **Improvements**
* Batch group/ungroup reparenting that preserves element order and
selection.
  * Coalesced panning and drag updates to reduce jitter.
* Connector/group indexing for more reliable updates, deletions and
sync.
  * Throttled viewport refresh behavior.

* **Documentation**
  * Docs added for RAF coalescer and measureOperation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/model/src/blocks/frame/frame-model.ts

@@ -155,9 +155,22 @@ export class FrameBlockModel
   }
 
   removeChild(element: GfxModel): void {
+    this.removeChildren([element]);
+  }
+
+  removeChildren(elements: GfxModel[]): void {
+    const childIds = [...new Set(elements.map(element => element.id))];
+    if (!this.props.childElementIds || childIds.length === 0) {
+      return;
+    }
+
     this.store.transact(() => {
-      this.props.childElementIds &&
-        delete this.props.childElementIds[element.id];
+      const childElementIds = this.props.childElementIds;
+      if (!childElementIds) return;
+
+      childIds.forEach(childId => {
+        delete childElementIds[childId];
+      });
     });
   }
 }

blocksuite/affine/model/src/elements/group/group.ts

@@ -54,12 +54,21 @@ export class GroupElementModel extends GfxGroupLikeElementModel<GroupElementProp
   }
 
   override addChild(element: GfxModel) {
-    if (!canSafeAddToContainer(this, element)) {
+    this.addChildren([element]);
+  }
+
+  addChildren(elements: GfxModel[]) {
+    elements = [...new Set(elements)].filter(element =>
+      canSafeAddToContainer(this, element)
+    );
+    if (elements.length === 0) {
       return;
     }
 
     this.surface.store.transact(() => {
-      this.children.set(element.id, true);
+      elements.forEach(element => {
+        this.children.set(element.id, true);
+      });
     });
   }
 
@@ -76,11 +85,22 @@ export class GroupElementModel extends GfxGroupLikeElementModel<GroupElementProp
   }
 
   removeChild(element: GfxModel) {
+    this.removeChildren([element]);
+  }
+
+  removeChildren(elements: GfxModel[]) {
     if (!this.children) {
       return;
     }
+    const childIds = [...new Set(elements.map(element => element.id))];
+    if (childIds.length === 0) {
+      return;
+    }
+
     this.surface.store.transact(() => {
-      this.children.delete(element.id);
+      childIds.forEach(childId => {
+        this.children.delete(childId);
+      });
     });
   }