register installation SN after step 3

csharp/App/Backend/DataTypes/ChecklistStepDefinitions.cs

@@ -10,7 +10,12 @@ public static class ChecklistStepDefinitions
     {
         new( 1, "Order created, customer and partner info recorded in CRM",                NoSubtasks),
         new( 2, "Hardware assembled at Vebo",                                              NoSubtasks),
-        new( 3, "Installation created on Monitor under correct product and folder",        NoSubtasks),
+        new( 3, "Installation created on Monitor under correct product and folder",
+            """
+            [
+              {"text":"checklistStep3Sub1","checked":false}
+            ]
+            """),
         new( 4, "Gateway SD card configured, VPN and gateway name registered",             NoSubtasks),
         new( 5, "Information tab filled out (customer, serials, VPN)",
             """

csharp/App/Backend/Database/Db.cs

@@ -136,6 +136,12 @@ public static partial class Db
                 $"\"{oldText}\"", $"\"{key}\"", $"%\"{oldText}\"%");
         }
 
+        // One-time backfill: step 3 originally had no subtasks; add the installation serial subtask
+        // to existing rows.
+        Connection.Execute(
+            "UPDATE ChecklistItem SET Subtasks = ? WHERE StepNumber = 3 AND (Subtasks IS NULL OR Subtasks = '')",
+            "[{\"text\":\"checklistStep3Sub1\",\"checked\":false}]");
+
         // One-time backfill: step 8 originally had no subtasks; add the delivery-receipt subtask
         // to existing rows so already-seeded installations pick up the new subtask after deploy.
         Connection.Execute(

typescript/frontend-marios2/src/lang/de.json

@@ -729,6 +729,7 @@
   "checklistStep14": "Benutzerkonto mit richtigen Ordnern und Zugriffen erstellt",
   "checklistStep15": "Kundennachverfolgung abgeschlossen, Feedback eingeholt",
   "checklistStep16": "Weitere Anliegen werden über das Ticket-System verfolgt",
+  "checklistStep3Sub1": "Installations-Seriennummer",
   "checklistStep5Sub1": "Kundeninformationen (E-Mail, Adresse)",
   "checklistStep5Sub2": "Installationsinformationen (externes EMS, Stromanbieter, Datenerfassung)",
   "checklistStep5Sub3": "Batterie-Seriennummer",

typescript/frontend-marios2/src/lang/en.json

@@ -477,6 +477,7 @@
   "checklistStep14": "User account created with correct folders and access",
   "checklistStep15": "Customer follow-up completed, feedback collected",
   "checklistStep16": "Further issues tracked via Ticket system",
+  "checklistStep3Sub1": "Installation serial number",
   "checklistStep5Sub1": "Customer information (email, address)",
   "checklistStep5Sub2": "Installation information (external EMS, grid provider, data collection)",
   "checklistStep5Sub3": "Battery serial number",

typescript/frontend-marios2/src/lang/fr.json

@@ -729,6 +729,7 @@
   "checklistStep14": "Compte utilisateur créé avec les dossiers et accès corrects",
   "checklistStep15": "Suivi client effectué, retour recueilli",
   "checklistStep16": "Problèmes ultérieurs suivis via le système de tickets",
+  "checklistStep3Sub1": "Numéro de série de l'installation",
   "checklistStep5Sub1": "Informations client (e-mail, adresse)",
   "checklistStep5Sub2": "Informations d'installation (EMS externe, fournisseur réseau, collecte de données)",
   "checklistStep5Sub3": "Numéro de série de la batterie",

typescript/frontend-marios2/src/lang/it.json

@@ -729,6 +729,7 @@
   "checklistStep14": "Account utente creato con cartelle e accessi corretti",
   "checklistStep15": "Follow-up cliente completato, feedback raccolto",
   "checklistStep16": "Ulteriori problemi tracciati tramite il sistema di ticket",
+  "checklistStep3Sub1": "Numero di serie dell'installazione",
   "checklistStep5Sub1": "Informazioni cliente (e-mail, indirizzo)",
   "checklistStep5Sub2": "Informazioni installazione (EMS esterno, fornitore di rete, raccolta dati)",
   "checklistStep5Sub3": "Numero di serie batteria",