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 -->

tests/affine-local/e2e/blocksuite/clipboard/clipboard.spec.ts

@@ -448,7 +448,7 @@ test.describe('paste in readonly mode', () => {
       const pageRoot = document.querySelector(
         'affine-page-root'
       ) as PageRootBlockComponent;
-      pageRoot.doc.readonly = true;
+      pageRoot.store.readonly = true;
     });
 
     await setSelection(page, blockIds[0], 0, blockIds[0], 4);