Add --reset-schedule flag for CLI and GUI installers

Installer/Program.cs

@@ -84,6 +84,7 @@ static async Task<int> Main(string[] args)
             */
             bool automatedMode = args.Length > 0;
             bool reinstallMode = args.Any(a => a.Equals("--reinstall", StringComparison.OrdinalIgnoreCase));
+            bool resetSchedule = args.Any(a => a.Equals("--reset-schedule", StringComparison.OrdinalIgnoreCase));
             bool trustCert = args.Any(a => a.Equals("--trust-cert", StringComparison.OrdinalIgnoreCase));
 
             /*Parse encryption option (default: Mandatory)*/
@@ -103,6 +104,7 @@ static async Task<int> Main(string[] args)
             /*Filter out option flags to get positional arguments*/
             var filteredArgs = args
                 .Where(a => !a.Equals("--reinstall", StringComparison.OrdinalIgnoreCase))
+                .Where(a => !a.Equals("--reset-schedule", StringComparison.OrdinalIgnoreCase))
                 .Where(a => !a.Equals("--trust-cert", StringComparison.OrdinalIgnoreCase))
                 .Where(a => !a.StartsWith("--encrypt=", StringComparison.OrdinalIgnoreCase))
                 .ToArray();
@@ -167,6 +169,7 @@ Automated mode with command-line arguments
                     Console.WriteLine();
                     Console.WriteLine("Options:");
                     Console.WriteLine("  --reinstall          Drop existing database and perform clean install");
+                    Console.WriteLine("  --reset-schedule     Reset collection schedule to recommended defaults");
                     Console.WriteLine("  --encrypt=<level>    Connection encryption: optional (default), mandatory, strict");
                     Console.WriteLine("  --trust-cert         Trust server certificate without validation (default: require valid cert)");
                     return ExitCodes.InvalidArguments;
@@ -610,6 +613,16 @@ Connection pooling handles the underlying socket reuse
                     {
                         string sqlContent = await File.ReadAllTextAsync(sqlFile);
 
+                        /*
+                        Reset schedule to defaults if requested — truncate before the
+                        INSERT...WHERE NOT EXISTS re-populates with current recommended values
+                        */
+                        if (resetSchedule && fileName.StartsWith("04_", StringComparison.Ordinal))
+                        {
+                            sqlContent = "TRUNCATE TABLE config.collection_schedule;\nGO\n" + sqlContent;
+                            Console.Write("(resetting schedule) ");
+                        }
+
                         /*
                         Remove SQLCMD directives (:r includes) as we're executing files directly
                         */

InstallerGui/MainWindow.xaml

@@ -180,6 +180,12 @@
                           Margin="0,0,0,10"
                           Foreground="{DynamicResource ForegroundBrush}"/>
 
+                <!-- Reset Schedule Checkbox -->
+                <CheckBox x:Name="ResetScheduleCheckBox"
+                          Content="Reset collection schedule to recommended defaults"
+                          Margin="0,0,0,10"
+                          Foreground="{DynamicResource ForegroundBrush}"/>
+
                 <!-- Validation Checkbox -->
                 <CheckBox x:Name="ValidationCheckBox"
                           Content="Run validation after install (recommended)"

InstallerGui/MainWindow.xaml.cs

@@ -394,10 +394,12 @@ private async void Install_Click(object sender, RoutedEventArgs e)
                 Execute installation
                 Community dependencies install automatically before validation (98_validate)
                 */
+                bool resetSchedule = ResetScheduleCheckBox.IsChecked == true;
                 _installationResult = await InstallationService.ExecuteInstallationAsync(
                     _connectionString,
                     _sqlFiles,
                     isCleanInstall,
+                    resetSchedule,
                     progress,
                     preValidationAction: async () =>
                     {

InstallerGui/Services/InstallationService.cs

@@ -324,6 +324,7 @@ public static async Task<InstallationResult> ExecuteInstallationAsync(
             string connectionString,
             List<string> sqlFiles,
             bool cleanInstall,
+            bool resetSchedule = false,
             IProgress<InstallationProgress>? progress = null,
             Func<Task>? preValidationAction = null,
             CancellationToken cancellationToken = default)
@@ -410,6 +411,17 @@ Execute SQL files
                 {
                     string sqlContent = await File.ReadAllTextAsync(sqlFile, cancellationToken).ConfigureAwait(false);
 
+                    /*Reset schedule to defaults if requested*/
+                    if (resetSchedule && fileName.StartsWith("04_", StringComparison.Ordinal))
+                    {
+                        sqlContent = "TRUNCATE TABLE config.collection_schedule;\nGO\n" + sqlContent;
+                        progress?.Report(new InstallationProgress
+                        {
+                            Message = "Resetting schedule to recommended defaults...",
+                            Status = "Info"
+                        });
+                    }
+
                     /*Remove SQLCMD directives*/
                     sqlContent = SqlCmdDirectivePattern.Replace(sqlContent, "");