Email digital receipts, add promo settings, and apply tips at charge.

Send real receipt emails from the customer display and sale page, store
branch promo content for the idle screen, and fold selected tips into totals.

app/Models/PosLocation.php

@@ -24,6 +24,9 @@ class PosLocation extends Model
         'receipt_logo_path',
         'printer_paper_mm',
         'printer_auto_print',
+        'customer_promo_headline',
+        'customer_promo_body',
+        'customer_promo_image_path',
     ];
 
     protected function casts(): array
@@ -49,6 +52,25 @@ class PosLocation extends Model
         return Storage::disk('public')->url($this->receipt_logo_path);
     }
 
+    public function customerPromoImageUrl(): ?string
+    {
+        if ($this->customer_promo_image_path) {
+            return Storage::disk('public')->url($this->customer_promo_image_path);
+        }
+
+        return $this->receiptLogoUrl();
+    }
+
+    /** Default idle-screen promo for the customer-facing display. */
+    public function customerPromo(): array
+    {
+        return [
+            'headline' => $this->customer_promo_headline ?: $this->name,
+            'body' => $this->customer_promo_body ?: 'Thank you for shopping with us.',
+            'image_url' => $this->customerPromoImageUrl(),
+        ];
+    }
+
     public function products(): HasMany
     {
         return $this->hasMany(PosProduct::class, 'location_id');