Add enable/disable management for book tools (characters, worlds, and locations)

- Introduced toggling functionality for managing `characters`, `worlds`, and `locations` tool availability per book.
- Updated `CharacterComponent`, `WorldSetting`, and `LocationComponent` with toggle switches for tool enablement.
- Added `book_tools` database table and related schema migration for storing tool settings.
- Extended API calls, models, and IPC handlers to support tool enablement states.
- Localized new strings for English with supporting descriptions and messages.
- Adjusted conditional rendering logic across components to respect tool enablement.

electron/database/models/Character.ts

@@ -3,6 +3,7 @@ import CharacterRepo, {
     CharacterResult,
     CompleteCharacterResult
 } from "../repositories/character.repository.js";
+import BookRepo, {BookToolsTable} from "../repositories/book.repository.js";
 import System from "../System.js";
 import {getUserEncryptionKey} from "../keyManager.js";
 
@@ -41,6 +42,11 @@ export interface CharacterProps {
     history: string;
 }
 
+export interface CharacterListResponse {
+    characters: CharacterProps[];
+    enabled: boolean;
+}
+
 export interface CompleteCharacterProps {
     id?: string;
     name: string;
@@ -87,11 +93,15 @@ export default class Character {
      * @param lang - The language code for localization (defaults to 'fr')
      * @returns An array of decrypted character properties
      */
-    public static getCharacterList(userId: string, bookId: string, lang: 'fr' | 'en' = 'fr'): CharacterProps[] {
+    public static getCharacterList(userId: string, bookId: string, lang: 'fr' | 'en' = 'fr'): CharacterListResponse {
+        const bookTools: BookToolsTable | null = BookRepo.fetchBookTools(userId, bookId, lang);
+        const enabled: boolean = bookTools ? bookTools.characters_enabled === 1 : false;
+
         const userEncryptionKey: string = getUserEncryptionKey(userId);
         const encryptedCharacters: CharacterResult[] = CharacterRepo.fetchCharacters(userId, bookId, lang);
-        if (!encryptedCharacters) return [];
-        if (encryptedCharacters.length === 0) return [];
+        if (!encryptedCharacters || encryptedCharacters.length === 0) {
+            return { characters: [], enabled };
+        }
         const decryptedCharacterList: CharacterProps[] = [];
         for (const encryptedCharacter of encryptedCharacters) {
             decryptedCharacterList.push({
@@ -106,7 +116,7 @@ export default class Character {
                 history: encryptedCharacter.history ? System.decryptDataWithUserKey(encryptedCharacter.history, userEncryptionKey) : '',
             })
         }
-        return decryptedCharacterList;
+        return { characters: decryptedCharacterList, enabled };
     }
 
     /**
@@ -358,4 +368,5 @@ export default class Character {
         }).join('\n\n');
         return formattedCharactersDescription;
     }
+
 }