fix: resolve TypeScript errors in database service implementation

- Remove unnecessary generic type parameter from AbsurdSqlDatabaseService
- Fix type handling in operation queue and result processing
- Correct WebPlatformService dbGetOneRow implementation to use imported databaseService
- Add proper type annotations for database operation results

This commit improves type safety and fixes several TypeScript errors that were
preventing proper type checking in the database service layer.

src/services/platforms/WebPlatformService.ts

@@ -381,4 +381,8 @@ export class WebPlatformService implements PlatformService {
   ): Promise<{ changes: number; lastId?: number }> {
     return databaseService.run(sql, params);
   }
+
+  async dbGetOneRow(sql: string, params?: unknown[]): Promise<unknown[] | undefined> {
+    return databaseService.query(sql, params).then((result: QueryExecResult[]) => result[0]?.values[0]);
+  }
 }