refactor(editor): unify directories naming (#11516)

**Directory Structure Changes**

- Renamed multiple block-related directories by removing the "block-" prefix:
  - `block-attachment` → `attachment`
  - `block-bookmark` → `bookmark`
  - `block-callout` → `callout`
  - `block-code` → `code`
  - `block-data-view` → `data-view`
  - `block-database` → `database`
  - `block-divider` → `divider`
  - `block-edgeless-text` → `edgeless-text`
  - `block-embed` → `embed`

blocksuite/affine/widgets/remote-selection/src/manager/color-picker.ts

@@ -0,0 +1,36 @@
+class RandomPicker<T> {
+  private _copyArray: T[];
+
+  private readonly _originalArray: T[];
+
+  constructor(array: T[]) {
+    this._originalArray = [...array];
+    this._copyArray = [...array];
+  }
+
+  private randomIndex(max: number): number {
+    return Math.floor(Math.random() * max);
+  }
+
+  pick(): T {
+    if (this._copyArray.length === 0) {
+      this._copyArray = [...this._originalArray];
+    }
+
+    const index = this.randomIndex(this._copyArray.length);
+    const item = this._copyArray[index];
+    this._copyArray.splice(index, 1);
+    return item;
+  }
+}
+
+export const multiPlayersColor = new RandomPicker([
+  'var(--affine-multi-players-purple)',
+  'var(--affine-multi-players-magenta)',
+  'var(--affine-multi-players-red)',
+  'var(--affine-multi-players-orange)',
+  'var(--affine-multi-players-green)',
+  'var(--affine-multi-players-blue)',
+  'var(--affine-multi-players-brown)',
+  'var(--affine-multi-players-grey)',
+]);

blocksuite/affine/widgets/remote-selection/src/manager/remote-color-manager.ts

@@ -0,0 +1,42 @@
+import { EditPropsStore } from '@blocksuite/affine-shared/services';
+import type { BlockStdScope } from '@blocksuite/std';
+
+import { multiPlayersColor } from './color-picker';
+
+export class RemoteColorManager {
+  private get awarenessStore() {
+    return this.std.store.awarenessStore;
+  }
+
+  constructor(readonly std: BlockStdScope) {
+    const sessionColor = this.std.get(EditPropsStore).getStorage('remoteColor');
+    if (sessionColor) {
+      this.awarenessStore.awareness.setLocalStateField('color', sessionColor);
+      return;
+    }
+
+    const pickColor = multiPlayersColor.pick();
+    this.awarenessStore.awareness.setLocalStateField('color', pickColor);
+    this.std.get(EditPropsStore).setStorage('remoteColor', pickColor);
+  }
+
+  get(id: number) {
+    const awarenessColor = this.awarenessStore.getStates().get(id)?.color;
+    if (awarenessColor) {
+      return awarenessColor;
+    }
+
+    if (id !== this.awarenessStore.awareness.clientID) return null;
+
+    const sessionColor = this.std.get(EditPropsStore).getStorage('remoteColor');
+    if (sessionColor) {
+      this.awarenessStore.awareness.setLocalStateField('color', sessionColor);
+      return sessionColor;
+    }
+
+    const pickColor = multiPlayersColor.pick();
+    this.awarenessStore.awareness.setLocalStateField('color', pickColor);
+    this.std.get(EditPropsStore).setStorage('remoteColor', pickColor);
+    return pickColor;
+  }
+}