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/OfferTemplate.php

@@ -0,0 +1,77 @@
+<?php
+
+namespace App\Models;
+
+use App\User;
+use Carbon\Carbon;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+/**
+ * Wiederverwendbare Angebots-Vorlage (Modul 6).
+ *
+ * Liefert Default-Texte + Default-Positionen für neue Angebote.
+ * `default_items` ist ein JSON-Array von Positionen im Schema
+ * [{title, description, type, price_per_unit, quantity}, …].
+ *
+ * @property int $id
+ * @property int|null $branch_id
+ * @property string $name
+ * @property string|null $description
+ * @property string|null $default_headline
+ * @property string|null $default_intro
+ * @property string|null $default_itinerary
+ * @property string|null $default_closing
+ * @property array|null $default_items
+ * @property bool $is_active
+ * @property int $created_by
+ * @property Carbon $created_at
+ * @property Carbon $updated_at
+ * @property Carbon|null $deleted_at
+ * @property-read Branch|null $branch
+ * @property-read User $creator
+ */
+class OfferTemplate extends Model
+{
+    use HasFactory, SoftDeletes;
+
+    protected $table = 'offer_templates';
+
+    protected $fillable = [
+        'branch_id',
+        'name',
+        'description',
+        'default_headline',
+        'default_intro',
+        'default_itinerary',
+        'default_closing',
+        'default_items',
+        'is_active',
+        'created_by',
+    ];
+
+    protected $casts = [
+        'branch_id'     => 'int',
+        'default_items' => 'array',
+        'is_active'     => 'bool',
+        'created_by'    => 'int',
+    ];
+
+    public function branch(): BelongsTo
+    {
+        return $this->belongsTo(Branch::class);
+    }
+
+    public function creator(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'created_by');
+    }
+
+    public function scopeActive(Builder $q): Builder
+    {
+        return $q->where('is_active', true);
+    }
+}