Add system for managing and scheduling data backups

Introduce a new backup management feature with automated scheduling, manual backups, and a dedicated interface for viewing backup status and details. This includes integrating `node-cron` for scheduling, updating the database schema to store backup information, and creating new routes and components for the backup manager.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 7c468936-2a88-4686-ac0a-84921a45222d
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/7c468936-2a88-4686-ac0a-84921a45222d/9xfbVBU

shared/schema.ts

@@ -11,6 +11,7 @@ import {
   date,
   decimal,
   primaryKey,
+  bigint,
 } from "drizzle-orm/pg-core";
 import { relations } from "drizzle-orm";
 import { createInsertSchema } from "drizzle-zod";
@@ -512,8 +513,24 @@ export const insertInvoiceVerificationCacheSchema = createInsertSchema(invoiceVe
   updatedAt: true,
 });
 
+export const databaseBackups = pgTable("database_backups", {
+  id: varchar("id", { length: 255 }).primaryKey(),
+  filename: varchar("filename", { length: 255 }).notNull(),
+  description: text("description"),
+  size: bigint("size", { mode: "number" }).default(0),
+  createdAt: timestamp("created_at").defaultNow(),
+  createdBy: varchar("created_by", { length: 255 }).notNull(),
+  tablesCount: integer("tables_count").default(0),
+  status: varchar("status", { length: 50 }).default("creating"),
+  backupType: varchar("backup_type", { length: 10 }).default("manual"),
+});
+
+export const insertDatabaseBackupSchema = createInsertSchema(databaseBackups);
+
 export type InsertNocodbConfig = z.infer<typeof insertNocodbConfigSchema>;
 export type InsertInvoiceVerificationCache = z.infer<typeof insertInvoiceVerificationCacheSchema>;
+export type DatabaseBackup = typeof databaseBackups.$inferSelect;
+export type InsertDatabaseBackup = z.infer<typeof insertDatabaseBackupSchema>;
 
 // Types
 export type User = typeof users.$inferSelect;