Introduce series management functionality and repository updates

- Added `series-world.repo.ts` to handle database operations related to series worlds and their elements.
- Implemented `series-sync.repo.ts` for managing synchronization between books and series.
- Expanded `spell.ipc.ts` data models to include `seriesSpellId` for spell synchronization.
- Refactored `insertSpellTag` method in `spelltag.repo.ts` for improved error handling and logic clarity.

electron/ipc/book.ipc.ts

@@ -82,6 +82,7 @@ interface AddWorldData {
     bookId: string;
     worldName: string;
     id?: string;
+    seriesWorldId?: string | null;
 }
 
 interface AddWorldElementData {
@@ -113,7 +114,7 @@ interface UpdateWorldData {
 
 interface UpdateBookToolData {
     bookId: string;
-    toolName: 'characters' | 'worlds' | 'locations';
+    toolName: 'characters' | 'worlds' | 'locations' | 'spells';
     enabled: boolean;
 }
 
@@ -340,7 +341,7 @@ ipcMain.handle('db:book:worlds:get', createHandler<GetWorldsData, WorldListRespo
 // POST /book/world/add - Add world
 ipcMain.handle('db:book:world:add', createHandler<AddWorldData, string>(
         function(userId: string, data: AddWorldData, lang: 'fr' | 'en') {
-            return World.addNewWorld(userId, data.bookId, data.worldName, lang, data.id);
+            return World.addNewWorld(userId, data.bookId, data.worldName, lang, data.id, data.seriesWorldId || null);
         }
     )
 );