Add offline mode logic for book, story, and world operations

- Integrate `OfflineContext` into book, story settings, and related components.
- Add conditional logic to toggle between server API requests and offline IPC handlers (`db:book:delete`, `db:book:story:get`, `db:location:all`, etc.).
- Refactor and update IPC handlers to accept structured data arguments for improved consistency (`data: object`).
- Ensure stricter typings in IPC handlers and frontend functions.
- Improve error handling and user feedback in both online and offline modes.

components/book/settings/story/StorySetting.tsx

@@ -12,6 +12,7 @@ import Issues from "@/components/book/settings/story/Issue";
 import Act from "@/components/book/settings/story/Act";
 import {useTranslations} from "next-intl";
 import {LangContext, LangContextProps} from "@/context/LangContext";
+import OfflineContext, {OfflineContextType} from "@/context/OfflineContext";
 
 export const StoryContext = createContext<{
     acts: ActType[];
@@ -41,6 +42,7 @@ interface StoryFetchData {
 export function Story(props: any, ref: any) {
     const t = useTranslations();
     const {lang} = useContext<LangContextProps>(LangContext);
+    const {isCurrentlyOffline} = useContext<OfflineContextType>(OfflineContext);
     const {book} = useContext(BookContext);
     const bookId: string = book?.bookId ? book.bookId.toString() : '';
     const {session} = useContext(SessionContext);
@@ -68,9 +70,14 @@ export function Story(props: any, ref: any) {
     
     async function getStoryData(): Promise<void> {
         try {
-            const response: StoryFetchData = await System.authGetQueryToServer<StoryFetchData>(`book/story`, userToken, lang, {
-                bookid: bookId,
-            });
+            let response: StoryFetchData;
+            if (isCurrentlyOffline()) {
+                response = await window.electron.invoke<StoryFetchData>('db:book:story:get', {bookid: bookId});
+            } else {
+                response = await System.authGetQueryToServer<StoryFetchData>(`book/story`, userToken, lang, {
+                    bookid: bookId,
+                });
+            }
             if (response) {
                 setActs(response.acts);
                 setMainChapters(response.mainChapter);
@@ -119,13 +126,18 @@ export function Story(props: any, ref: any) {
     
     async function handleSave(): Promise<void> {
         try {
-            const response: boolean =
-                await System.authPostToServer<boolean>('book/story', {
-                    bookId,
-                    acts,
-                    mainChapters,
-                    issues,
-                }, userToken, lang);
+            let response: boolean;
+            const storyData = {
+                bookId,
+                acts,
+                mainChapters,
+                issues,
+            };
+            if (isCurrentlyOffline()) {
+                response = await window.electron.invoke<boolean>('db:book:story:update', storyData);
+            } else {
+                response = await System.authPostToServer<boolean>('book/story', storyData, userToken, lang);
+            }
             if (!response) {
                 errorMessage(t("story.errorSave"))
             }