refactor(editor): rename doc to store on block components (#12173)

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

## Summary by CodeRabbit

- **Refactor**
  - Unified internal data access by replacing all references from `doc` to `store` across all components, blocks, widgets, and utilities. This affects how readonly state, block operations, and service retrieval are handled throughout the application.
- **Tests**
  - Updated all test utilities and test cases to use `store` instead of `doc` for document-related operations.
- **Chores**
  - Updated context providers and property names to reflect the change from `doc` to `store` for improved consistency and maintainability.

No user-facing features or behaviors have changed.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/widgets/remote-selection/src/doc/doc-remote-selection.ts

@@ -58,7 +58,7 @@ export class AffineDocRemoteSelectionWidget extends WidgetComponent {
   private _remoteColorManager: RemoteColorManager | null = null;
 
   private readonly _remoteSelections = computed(() => {
-    const status = this.doc.awarenessStore.getStates();
+    const status = this.store.awarenessStore.getStates();
     return [...this.std.selection.remoteSelections.entries()].map(
       ([id, selections]) => {
         return {

blocksuite/affine/widgets/remote-selection/src/edgeless/index.ts

@@ -90,7 +90,7 @@ export class EdgelessRemoteSelectionWidget extends WidgetComponent<RootBlockMode
   private readonly _updateRemoteCursor = () => {
     const remoteCursors: EdgelessRemoteSelectionWidget['_remoteCursors'] =
       new Map();
-    const status = this.doc.awarenessStore.getStates();
+    const status = this.store.awarenessStore.getStates();
 
     this.selection.remoteCursorSelectionMap.forEach(
       (cursorSelection, clientId) => {
@@ -177,7 +177,7 @@ export class EdgelessRemoteSelectionWidget extends WidgetComponent<RootBlockMode
   override connectedCallback() {
     super.connectedCallback();
 
-    const { _disposables, doc } = this;
+    const { _disposables, store } = this;
 
     if (this.surface) {
       _disposables.add(
@@ -192,7 +192,7 @@ export class EdgelessRemoteSelectionWidget extends WidgetComponent<RootBlockMode
     }
 
     _disposables.add(
-      doc.slots.blockUpdated.subscribe(this._updateOnElementChange)
+      store.slots.blockUpdated.subscribe(this._updateOnElementChange)
     );
 
     _disposables.add(