Add BooksSyncContext, refine database schema, and enhance synchronization support

- Introduce `BooksSyncContext` for managing book synchronization states (server-only, local-only, to-sync, etc.).
- Remove `UserContext` and related dependencies.
- Refine localization strings (`en.json`) with sync-related updates (e.g., "toSyncFromServer", "toSyncToServer").
- Extend database schema with additional tables and fields for syncing books, chapters, and related entities.
- Add `last_update` fields and update corresponding repository methods to support synchronization logic.
- Enhance IPC handlers with stricter typing, data validation, and sync-aware operations.

lib/models/Book.ts

@@ -1,6 +1,61 @@
 import {Author} from './User';
 import {ActChapter, ChapterProps} from "@/lib/models/Chapter";
 import {SelectBoxProps} from "@/shared/interface";
+import {
+    BookActSummariesTable,
+    BookAIGuideLineTable,
+    BookChapterContentTable, BookChapterInfosTable,
+    BookChaptersTable, BookCharactersAttributesTable, BookCharactersTable, BookGuideLineTable, BookIncidentsTable,
+    BookIssuesTable, BookLocationTable, BookPlotPointsTable, BookWorldElementsTable, BookWorldTable,
+    EritBooksTable, LocationElementTable, LocationSubElementTable
+} from "@/lib/models/BookTables";
+import {
+    SyncedActSummary, SyncedAIGuideLine,
+    SyncedChapter,
+    SyncedCharacter, SyncedGuideLine,
+    SyncedIncident, SyncedIssue,
+    SyncedLocation,
+    SyncedPlotPoint,
+    SyncedWorld
+} from "@/lib/models/SyncedBook";
+
+export interface CompleteBook {
+    eritBooks: EritBooksTable[];
+    actSummaries: BookActSummariesTable[];
+    aiGuideLine: BookAIGuideLineTable[];
+    chapters: BookChaptersTable[];
+    chapterContents: BookChapterContentTable[];
+    chapterInfos: BookChapterInfosTable[];
+    characters: BookCharactersTable[];
+    characterAttributes: BookCharactersAttributesTable[];
+    guideLine: BookGuideLineTable[];
+    incidents: BookIncidentsTable[];
+    issues: BookIssuesTable[];
+    locations: BookLocationTable[];
+    plotPoints: BookPlotPointsTable[];
+    worlds: BookWorldTable[];
+    worldElements: BookWorldElementsTable[];
+    locationElements: LocationElementTable[];
+    locationSubElements: LocationSubElementTable[];
+}
+
+export interface SyncedBook {
+    id: string;
+    type: string;
+    title: string;
+    subTitle: string | null;
+    lastUpdate: number;
+    chapters: SyncedChapter[];
+    characters: SyncedCharacter[];
+    locations: SyncedLocation[];
+    worlds: SyncedWorld[];
+    incidents: SyncedIncident[];
+    plotPoints: SyncedPlotPoint[];
+    issues: SyncedIssue[];
+    actSummaries: SyncedActSummary[];
+    guideLine: SyncedGuideLine | null;
+    aiGuideLine: SyncedAIGuideLine | null;
+}
 
 export interface BookProps {
     bookId: string;
@@ -30,6 +85,7 @@ export interface BookListProps {
     wordCount?: number;
     coverImage?: string;
     bookMeta?: string;
+    itIsLocal?: boolean;
 }
 
 export interface GuideLine {