Refactor character, chapter, and story components to support offline mode

- Add `OfflineContext` and `BookContext` to components for offline state management.
- Introduce conditional logic to toggle between server API requests and offline IPC handlers for CRUD operations.
- Refine `TextEditor`, `DraftCompanion`, and other components to disable actions or features unavailable in offline mode.
- Improve error handling and user feedback in both online and offline scenarios.

components/book/settings/characters/CharacterDetail.tsx

@@ -30,6 +30,7 @@ import CharacterSectionElement from "@/components/book/settings/characters/Chara
 import {useTranslations} from "next-intl";
 import {LangContext} from "@/context/LangContext";
 import OfflineContext, {OfflineContextType} from "@/context/OfflineContext";
+import {BookContext} from "@/context/BookContext";
 
 interface CharacterDetailProps {
     selectedCharacter: CharacterProps | null;
@@ -57,6 +58,7 @@ export default function CharacterDetail(
     const t = useTranslations();
     const {lang} = useContext(LangContext);
     const {isCurrentlyOffline} = useContext<OfflineContextType>(OfflineContext);
+    const {book} = useContext(BookContext);
     const {session} = useContext(SessionContext);
     const {errorMessage} = useContext(AlertContext);
     
@@ -74,9 +76,15 @@ export default function CharacterDetail(
                     characterId: selectedCharacter?.id,
                 });
             } else {
-                response = await System.authGetQueryToServer<CharacterAttribute>(`character/attribute`, session.accessToken, lang, {
-                    characterId: selectedCharacter?.id,
-                });
+                if (book?.localBook) {
+                    response = await window.electron.invoke<CharacterAttribute>('db:character:attributes', {
+                        characterId: selectedCharacter?.id,
+                    });
+                } else {
+                    response = await System.authGetQueryToServer<CharacterAttribute>(`character/attribute`, session.accessToken, lang, {
+                        characterId: selectedCharacter?.id,
+                    });
+                }
             }
             if (response) {
                 setSelectedCharacter({