feat: extend volume backup functionality with scheduling and management

- Added support for volume backup jobs in the scheduling and removal processes.
- Enhanced job management to include volume backups in the job queue.
- Updated schema to accommodate volume backup data structure.
- Implemented initialization of volume backup jobs based on server status, improving backup management.

apps/schedules/src/schema.ts

@@ -16,6 +16,11 @@ export const jobQueueSchema = z.discriminatedUnion("type", [
 		type: z.literal("schedule"),
 		scheduleId: z.string(),
 	}),
+	z.object({
+		cronSchedule: z.string(),
+		type: z.literal("volume-backup"),
+		volumeBackupId: z.string(),
+	}),
 ]);
 
 export type QueueJob = z.infer<typeof jobQueueSchema>;