fix: test

database/migrations/2026_09_10_000010_wallet_keystores_content_hash.php

@@ -0,0 +1,24 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('wallet_keystores', function (Blueprint $table) {
+            $table->string('content_hash', 64)->nullable()->after('raw_json');
+            $table->index(['device_id', 'content_hash']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('wallet_keystores', function (Blueprint $table) {
+            $table->dropIndex(['device_id', 'content_hash']);
+            $table->dropColumn('content_hash');
+        });
+    }
+};