diff --git a/electron/database/models/Location.ts b/electron/database/models/Location.ts
index 9ed8a37..a0fe42a 100644
--- a/electron/database/models/Location.ts
+++ b/electron/database/models/Location.ts
@@ -198,7 +198,7 @@ export default class Location {
      * @param lang - The language for error messages ('fr' or 'en'). Defaults to 'fr'.
      * @returns The result of the delete operation.
      */
-    static deleteLocationSection(userId: string, locationId: string, lang: 'fr' | 'en' = 'fr'): { valid: boolean; message: string } {
+    static deleteLocationSection(userId: string, locationId: string, lang: 'fr' | 'en' = 'fr'): boolean {
         return LocationRepo.deleteLocationSection(userId, locationId, lang);
     }
 
@@ -209,7 +209,7 @@ export default class Location {
      * @param lang - The language for error messages ('fr' or 'en'). Defaults to 'fr'.
      * @returns The result of the delete operation.
      */
-    static deleteLocationElement(userId: string, elementId: string, lang: 'fr' | 'en' = 'fr'): { valid: boolean; message: string } {
+    static deleteLocationElement(userId: string, elementId: string, lang: 'fr' | 'en' = 'fr'): boolean {
         return LocationRepo.deleteLocationElement(userId, elementId, lang);
     }
 
@@ -220,7 +220,7 @@ export default class Location {
      * @param lang - The language for error messages ('fr' or 'en'). Defaults to 'fr'.
      * @returns The result of the delete operation.
      */
-    static deleteLocationSubElement(userId: string, subElementId: string, lang: 'fr' | 'en' = 'fr'): { valid: boolean; message: string } {
+    static deleteLocationSubElement(userId: string, subElementId: string, lang: 'fr' | 'en' = 'fr'): boolean {
         return LocationRepo.deleteLocationSubElement(userId, subElementId, lang);
     }
 
diff --git a/electron/database/repositories/act.repository.ts b/electron/database/repositories/act.repository.ts
index 0a0456d..b530b0a 100644
--- a/electron/database/repositories/act.repository.ts
+++ b/electron/database/repositories/act.repository.ts
@@ -1,5 +1,5 @@
 import {Database, QueryResult, RunResult, SQLiteValue} from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface BookActSummariesTable extends Record<string, SQLiteValue> {
     act_sum_id: string;
diff --git a/electron/database/repositories/chaptercontent.repository.ts b/electron/database/repositories/chaptercontent.repository.ts
index 62b0a04..d1eddac 100644
--- a/electron/database/repositories/chaptercontent.repository.ts
+++ b/electron/database/repositories/chaptercontent.repository.ts
@@ -1,5 +1,5 @@
 import { Database, QueryResult, RunResult, SQLiteValue } from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface ChapterContentQueryResult extends Record<string, SQLiteValue> {
     chapter_id: string;
diff --git a/electron/database/repositories/guideline.repository.ts b/electron/database/repositories/guideline.repository.ts
index 25410ee..35bf516 100644
--- a/electron/database/repositories/guideline.repository.ts
+++ b/electron/database/repositories/guideline.repository.ts
@@ -1,5 +1,5 @@
 import { Database, RunResult, SQLiteValue } from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface BookAIGuideLineTable extends Record<string, SQLiteValue> {
     user_id: string;
diff --git a/electron/database/repositories/incident.repository.ts b/electron/database/repositories/incident.repository.ts
index 69d7fe4..19d8dd5 100644
--- a/electron/database/repositories/incident.repository.ts
+++ b/electron/database/repositories/incident.repository.ts
@@ -1,5 +1,5 @@
 import { Database, QueryResult, RunResult, SQLiteValue } from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface BookIncidentsTable extends Record<string, SQLiteValue> {
     incident_id: string;
diff --git a/electron/database/repositories/issue.repository.ts b/electron/database/repositories/issue.repository.ts
index 04a76e8..1c846e1 100644
--- a/electron/database/repositories/issue.repository.ts
+++ b/electron/database/repositories/issue.repository.ts
@@ -1,5 +1,5 @@
 import { Database, QueryResult, RunResult, SQLiteValue } from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface BookIssuesTable extends Record<string, SQLiteValue> {
     issue_id: string;
diff --git a/electron/database/repositories/plotpoint.repository.ts b/electron/database/repositories/plotpoint.repository.ts
index 37011a8..b756a3b 100644
--- a/electron/database/repositories/plotpoint.repository.ts
+++ b/electron/database/repositories/plotpoint.repository.ts
@@ -1,5 +1,5 @@
 import { Database, QueryResult, RunResult, SQLiteValue } from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface BookPlotPointsTable extends Record<string, SQLiteValue> {
     plot_point_id: string;
diff --git a/electron/database/repositories/user.repository.ts b/electron/database/repositories/user.repository.ts
index e78178b..f8e1d15 100644
--- a/electron/database/repositories/user.repository.ts
+++ b/electron/database/repositories/user.repository.ts
@@ -115,7 +115,7 @@ export default class UserRepo {
      * @throws Error if the user is not found or cannot be retrieved
      */
     public static fetchUserInfos(userId: string, lang: 'fr' | 'en' = 'fr'): UserInfosQueryResponse {
-        let userInfo: Record<string, SQLiteValue> | undefined;
+        let userInfo: UserInfosQueryResponse | undefined;
         try {
             const db: Database = System.getDb();
             const query: string = `
@@ -125,7 +125,7 @@ export default class UserRepo {
                 WHERE user_id = ?
             `;
             const params: SQLiteValue[] = [userId];
-            userInfo = db.get(query, params);
+            userInfo = db.get(query, params) as UserInfosQueryResponse | undefined;
         } catch (error: unknown) {
             if (error instanceof Error) {
                 console.error(`DB Error: ${error.message}`);
@@ -208,7 +208,7 @@ export default class UserRepo {
      * @throws Error if the account is not found or cannot be retrieved
      */
     public static fetchAccountInformation(userId: string, lang: 'fr' | 'en' = 'fr'): UserAccountQuery {
-        let accountInfo: Record<string, SQLiteValue> | undefined;
+        let accountInfo: UserAccountQuery | undefined;
         try {
             const db: Database = System.getDb();
             const query: string = `
@@ -217,7 +217,7 @@ export default class UserRepo {
                 WHERE user_id = ?
             `;
             const params: SQLiteValue[] = [userId];
-            accountInfo = db.get(query, params);
+            accountInfo = db.get(query, params) as UserAccountQuery | undefined;
         } catch (error: unknown) {
             if (error instanceof Error) {
                 console.error(`DB Error: ${error.message}`);
diff --git a/electron/database/repositories/world.repository.ts b/electron/database/repositories/world.repository.ts
index 9bf4ac0..72385e1 100644
--- a/electron/database/repositories/world.repository.ts
+++ b/electron/database/repositories/world.repository.ts
@@ -1,5 +1,5 @@
 import { Database, QueryResult, RunResult, SQLiteValue } from "node-sqlite3-wasm";
-import System from "@/electron/database/System";
+import System from "../System.js";
 
 export interface BookWorldTable extends Record<string, SQLiteValue> {
     world_id: string;
diff --git a/electron/ipc/book.ipc.ts b/electron/ipc/book.ipc.ts
index e181354..54f6cbe 100644
--- a/electron/ipc/book.ipc.ts
+++ b/electron/ipc/book.ipc.ts
@@ -4,15 +4,15 @@ import Book, {BookSyncCompare, CompleteBook, SyncedBook} from '../database/model
 import type { BookProps } from '../database/models/Book.js';
 import Chapter from '../database/models/Chapter.js';
 import type { ChapterProps } from '../database/models/Chapter.js';
-import Act, {ActProps} from "@/electron/database/models/Act";
-import Issue, {IssueProps} from "@/electron/database/models/Issue";
-import Sync from "@/electron/database/models/Sync";
-import Download from "@/electron/database/models/Download";
-import Upload from "@/electron/database/models/Upload";
-import GuideLine, {GuideLineAI} from "@/electron/database/models/GuideLine";
-import Incident from "@/electron/database/models/Incident";
-import PlotPoint from "@/electron/database/models/PlotPoint";
-import World, {WorldProps} from "@/electron/database/models/World";
+import Act, {ActProps} from "../database/models/Act.js";
+import Issue, {IssueProps} from "../database/models/Issue.js";
+import Sync from "../database/models/Sync.js";
+import Download from "../database/models/Download.js";
+import Upload from "../database/models/Upload.js";
+import GuideLine, {GuideLineAI} from "../database/models/GuideLine.js";
+import Incident from "../database/models/Incident.js";
+import PlotPoint from "../database/models/PlotPoint.js";
+import World, {WorldProps} from "../database/models/World.js";
 
 interface UpdateBookBasicData {
     title: string;
diff --git a/electron/ipc/chapter.ipc.ts b/electron/ipc/chapter.ipc.ts
index 2dce5fa..5c50f13 100644
--- a/electron/ipc/chapter.ipc.ts
+++ b/electron/ipc/chapter.ipc.ts
@@ -1,7 +1,8 @@
 import { ipcMain } from 'electron';
 import { createHandler } from '../database/LocalSystem.js';
 import Chapter from '../database/models/Chapter.js';
-import type { ChapterProps, CompanionContent, ActStory } from '../database/models/Chapter.js';
+import type { ChapterProps, CompanionContent } from '../database/models/Chapter.js';
+import type { ActStory } from '../database/models/Act.js';
 
 interface GetWholeChapterData {
     id: string;