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/frontend/core/src/desktop/components/navigation-panel/nodes/doc/index.tsx

@@ -16,6 +16,7 @@ import { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import { GlobalContextService } from '@affine/core/modules/global-context';
 import { NavigationPanelService } from '@affine/core/modules/navigation-panel';
 import { GuardService } from '@affine/core/modules/permissions';
+import { WorkspaceService } from '@affine/core/modules/workspace';
 import type { AffineDNDData } from '@affine/core/types/dnd';
 import { useI18n } from '@affine/i18n';
 import { track } from '@affine/track';
@@ -56,12 +57,14 @@ export const NavigationPanelDocNode = ({
   const t = useI18n();
   const {
     docsSearchService,
+    workspaceService,
     docsService,
     globalContextService,
     docDisplayMetaService,
     featureFlagService,
     guardService,
   } = useServices({
+    WorkspaceService,
     DocsSearchService,
     DocsService,
     GlobalContextService,
@@ -120,9 +123,17 @@ export const NavigationPanelDocNode = ({
 
   const [referencesLoading, setReferencesLoading] = useState(true);
   useLayoutEffect(() => {
+    if (collapsed) {
+      return;
+    }
     const abortController = new AbortController();
+    const undoSync = workspaceService.workspace.engine.doc.addPriority(
+      docId,
+      10
+    );
+    const undoIndexer = docsSearchService.indexer.addPriority(docId, 10);
     docsSearchService.indexer
-      .waitForDocCompletedWithPriority(docId, 100, abortController.signal)
+      .waitForDocCompleted(docId, abortController.signal)
       .then(() => {
         setReferencesLoading(false);
       })
@@ -132,9 +143,11 @@ export const NavigationPanelDocNode = ({
         }
       });
     return () => {
+      undoSync();
+      undoIndexer();
       abortController.abort(MANUALLY_STOP);
     };
-  }, [docId, docsSearchService]);
+  }, [docId, docsSearchService, workspaceService, collapsed]);
 
   const dndData = useMemo(() => {
     return {

packages/frontend/core/src/desktop/dialogs/doc-info/info-modal.tsx

@@ -14,14 +14,14 @@ import type {
   DatabaseRow,
   DatabaseValueCell,
 } from '@affine/core/modules/doc-info/types';
-import { DocsSearchService } from '@affine/core/modules/docs-search';
+import { DocLinksService } from '@affine/core/modules/doc-link';
 import { GuardService } from '@affine/core/modules/permissions';
 import { WorkspacePropertyService } from '@affine/core/modules/workspace-property';
 import { useI18n } from '@affine/i18n';
 import track from '@affine/track';
 import { PlusIcon } from '@blocksuite/icons/rc';
-import { LiveData, useLiveData, useServices } from '@toeverything/infra';
-import { useCallback, useMemo, useState } from 'react';
+import { useLiveData, useServices } from '@toeverything/infra';
+import { useCallback, useEffect, useState } from 'react';
 
 import * as styles from './info-modal.css';
 import { LinksRow } from './links-row';
@@ -34,11 +34,11 @@ export const InfoTable = ({
   onClose: () => void;
 }) => {
   const t = useI18n();
-  const { docsSearchService, workspacePropertyService, guardService } =
+  const { workspacePropertyService, guardService, docLinksService } =
     useServices({
-      DocsSearchService,
       WorkspacePropertyService,
       GuardService,
+      DocLinksService,
     });
   const canEditPropertyInfo = useLiveData(
     guardService.can$('Workspace_Properties_Update')
@@ -46,30 +46,9 @@ export const InfoTable = ({
   const canEditProperty = useLiveData(guardService.can$('Doc_Update', docId));
   const [newPropertyId, setNewPropertyId] = useState<string | null>(null);
   const properties = useLiveData(workspacePropertyService.sortedProperties$);
-  const links = useLiveData(
-    useMemo(
-      () => LiveData.from(docsSearchService.watchRefsFrom(docId), null),
-      [docId, docsSearchService]
-    )
-  );
+  const links = useLiveData(docLinksService.links.links$);
 
-  const backlinks = useLiveData(
-    useMemo(() => {
-      return LiveData.from(docsSearchService.watchRefsTo(docId), []).map(
-        links => {
-          const visitedDoc = new Set<string>();
-          // for each doc, we only show the first block
-          return links.filter(link => {
-            if (visitedDoc.has(link.docId)) {
-              return false;
-            }
-            visitedDoc.add(link.docId);
-            return true;
-          });
-        }
-      );
-    }, [docId, docsSearchService])
-  );
+  const backlinks = useLiveData(docLinksService.backlinks.backlinks$);
 
   const onBacklinkPropertyChange = useCallback(
     (_row: DatabaseRow, cell: DatabaseValueCell, _value: unknown) => {
@@ -111,6 +90,10 @@ export const InfoTable = ({
     []
   );
 
+  useEffect(() => {
+    docLinksService.backlinks.revalidateFromCloud();
+  }, [docLinksService.backlinks]);
+
   return (
     <>
       <PropertyCollapsibleSection