fix: use absolute URL for logo in all mail templates

The logo ``src`` was ``/storage/photos/shares/logo.png`` — a relative
path to a file that doesn't exist.  Email clients cannot resolve
relative URLs.  Replaces with the absolute URL to the actual logo at
``https://boutique.jardinenvie.com/img/logo.png`` across all 4 mail
templates.

database/migrations/shop/2026_02_09_070000_fix_logo_url_in_mail_templates.php

@@ -0,0 +1,56 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+return new class extends Migration
+{
+    private $oldSrc = '/storage/photos/shares/logo.png';
+
+    private $newSrc = 'https://boutique.jardinenvie.com/img/logo.png';
+
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $this->replaceLogoInAllTemplates($this->oldSrc, $this->newSrc);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        $this->replaceLogoInAllTemplates($this->newSrc, $this->oldSrc);
+    }
+
+    private function replaceLogoInAllTemplates(string $from, string $to): void
+    {
+        $templates = DB::table('mail_templates')->get();
+
+        foreach ($templates as $template) {
+            $translations = json_decode($template->html_template, true);
+
+            if (! $translations) {
+                continue;
+            }
+
+            $changed = false;
+
+            foreach ($translations as $lang => $html) {
+                $updated = str_replace($from, $to, $html);
+                if ($updated !== $html) {
+                    $translations[$lang] = $updated;
+                    $changed = true;
+                }
+            }
+
+            if ($changed) {
+                DB::table('mail_templates')
+                    ->where('id', $template->id)
+                    ->update(['html_template' => json_encode($translations, JSON_UNESCAPED_UNICODE)]);
+            }
+        }
+    }
+};