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/spell.ipc.ts

@@ -19,6 +19,7 @@ interface SpellPost {
     components?: string | null;
     limitations?: string | null;
     notes?: string | null;
+    seriesSpellId?: string | null;
 }
 
 interface GetSpellListData {
@@ -115,6 +116,7 @@ ipcMain.handle(
                 spell.notes || null,
                 spell.id,
                 lang,
+                spell.seriesSpellId || null,
             );
             return result.id;
         },
@@ -139,6 +141,7 @@ ipcMain.handle(
                 spell.limitations || null,
                 spell.notes || null,
                 lang,
+                spell.seriesSpellId || null,
             );
         },
     ),