feat(database): make backup schedule configurable via system keys (#4251)

DATABASE.md

@@ -5,7 +5,7 @@
 The newly introduced feature enhances the application with robust database backup and import capabilities. This feature is designed to ensure data integrity and provide a straightforward way to manage database backups. Here's how it works:
 
 1. Automatic Backup Creation
-   - The system automatically creates a database backup every day at midnight. This ensures that there is always a recent backup available, minimizing the risk of data loss.
+   - The system automatically creates a database backup on a configurable schedule (default: daily at midnight via `system.databaseBackup.cron`). This ensures that there is always a recent backup available, minimizing the risk of data loss.
 2. Manual Backup Export
    - Admin actions that modify the user database trigger a manual export of the database. This keeps the backup up-to-date with the latest changes and provides an extra layer of data security.
 3. Importing Database Backups

app/common/src/main/java/stirling/software/common/model/ApplicationProperties.java

@@ -329,12 +329,18 @@ public class ApplicationProperties {
         private CustomPaths customPaths = new CustomPaths();
         private String fileUploadLimit;
         private TempFileManagement tempFileManagement = new TempFileManagement();
+        private DatabaseBackup databaseBackup = new DatabaseBackup();
 
         public boolean isAnalyticsEnabled() {
             return this.getEnableAnalytics() != null && this.getEnableAnalytics();
         }
     }
 
+    @Data
+    public static class DatabaseBackup {
+        private String cron = "0 0 0 * * ?"; // daily at midnight
+    }
+
     @Data
     public static class CustomPaths {
         private Pipeline pipeline = new Pipeline();

app/core/src/main/resources/settings.yml.template

@@ -151,6 +151,8 @@ system:
     cleanupIntervalMinutes: 30 # How often to run cleanup (in minutes)
     startupCleanup: true # Clean up old temp files on startup
     cleanupSystemTemp: false # Whether to clean broader system temp directory
+  databaseBackup:
+    cron: '0 0 0 * * ?' # Cron expression for automatic database backups "0 0 0 * * ?" daily at midnight
 
 ui:
   appName: '' # application's visible name

app/proprietary/src/main/java/stirling/software/proprietary/security/database/ScheduledTasks.java

@@ -18,7 +18,7 @@ public class ScheduledTasks {
 
     private final DatabaseServiceInterface databaseService;
 
-    @Scheduled(cron = "0 0 0 * * ?")
+    @Scheduled(cron = "#{applicationProperties.system.databaseBackup.cron}")
     public void performBackup() throws SQLException, UnsupportedProviderException {
         databaseService.exportDatabase();
     }