WIP: Sicherheitsnetz vor Phase-1-R\u00fcckbau

Enth\u00e4lt gemischt: Laravel-10-Upgrade + Phase 1 (Contacts-Modul, Duplicats-Commands,
Soft-Delete+Merge-Fields) + Phase 2 Code-Umstellungen (inquiry_id, $table='contacts'/'inquiries')
+ Offers-Modul (Migrationen, Models, offer_id in Booking, offer-Disk in filesystems.php).

Phase 2 + Offers werden im folgenden Commit nach dev/backups/phase2-offers-2026-04-17/
verschoben, damit der Workspace auf Phase-1-only (= Test-System-Stand) reduziert ist
und direkt auf Live deploybar wird.

Tarball-Backup zus\u00e4tzlich unter: ../backups-safety/workspace-pre-phase1-rollback-2026-04-17.tar.gz

Made-with: Cursor

app/Models/Customer.php

@@ -9,6 +9,7 @@ namespace App\Models;
 use App\Models\Sym\TravelCountry;
 use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Collection;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 
 /**
@@ -83,20 +84,26 @@ use Illuminate\Database\Eloquent\Model;
  */
 class Customer extends Model
 {
+    use HasFactory;
+
     protected $connection = 'mysql';
 
-    protected $table = 'customer';
+    /**
+     * Modul 3 Phase 2: customer → contacts (RENAME TABLE).
+     * Der Model-Name bleibt aus Kompatibilität zum Legacy-Code bestehen;
+     * für die Neuimplementierung steht {@see Contact} bereit.
+     */
+    protected $table = 'contacts';
 
     protected $casts = [
         'salutation_id' => 'int',
         'credit_card_type_id' => 'int',
-        'country_id' => 'int'
-    ];
+        'country_id' => 'int',
+		'birthdate' => 'datetime',
+		'credit_card_expiration_date' => 'datetime',
+	];
 
-    protected $dates = [
-        'birthdate',
-        'credit_card_expiration_date'
-    ];
+    
 
     protected $fillable = [
         'salutation_id',