feat(core): support better battery save mode (#13383)

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

* **New Features**
* Introduced a Document Summary module, enabling live and cached
document summaries with cloud revalidation.
  * Added a feature flag for enabling battery save mode.
* Added explicit pause and resume controls for sync operations,
accessible via UI events and programmatically.

* **Improvements**
* Enhanced sync and indexing logic to support pausing, resuming, and
battery save mode, with improved job prioritization.
* Updated navigation and preview components to use the new document
summary service and improved priority handling.
* Improved logging and state reporting for sync and indexing processes.
* Refined backlink handling with reactive loading states and cloud
revalidation.
* Replaced backlink and link management to use a new dedicated document
links service.
* Enhanced workspace engine to conditionally enable battery save mode
based on feature flags and workspace flavor.

* **Bug Fixes**
* Removed unnecessary debug console logs from various components for
cleaner output.

* **Refactor**
* Replaced battery save mode methods with explicit pause/resume methods
throughout the app and services.
* Modularized and streamlined document summary and sync-related code for
better maintainability.
* Restructured backlink components to improve visibility handling and
data fetching.
* Simplified and improved document backlink data fetching with retry and
loading state management.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/common/nbstore/src/utils/async-priority-queue.ts

@@ -4,8 +4,11 @@ export class AsyncPriorityQueue extends PriorityQueue {
   private _resolveUpdate: (() => void) | null = null;
   private _waitForUpdate: Promise<void> | null = null;
 
-  async asyncPop(abort?: AbortSignal): Promise<string> {
-    const update = this.pop();
+  async asyncPop(
+    minimumPriority?: number,
+    abort?: AbortSignal
+  ): Promise<string> {
+    const update = this.pop(minimumPriority);
     if (update) {
       return update;
     } else {
@@ -27,7 +30,7 @@ export class AsyncPriorityQueue extends PriorityQueue {
         }),
       ]);
 
-      return this.asyncPop(abort);
+      return this.asyncPop(minimumPriority, abort);
     }
   }