diff --git a/app/database/migrations/2026_05_25_120100_seed_direct_supplier.php b/app/database/migrations/2026_05_25_120100_seed_direct_supplier.php
new file mode 100644
index 00000000..ea4d4850
--- /dev/null
+++ b/app/database/migrations/2026_05_25_120100_seed_direct_supplier.php
@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+/**
+ * Phase 3 — DIRECT supplier row (used by LedgerService::resolveSupplierId
+ * fallback for platform='DIRECT'). cost_rub matches B1 (same supplier,
+ * different routing).
+ *
+ * Spec: docs/superpowers/specs/2026-05-25-supplier-webhook-reliability-design.md §3 Phase 3
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        $b1 = DB::table('suppliers')->where('code', 'b1')->first();
+        if ($b1 === null) {
+            // Если B1 нет — significant prod drift, не должно произойти.
+            // Создаём с дефолтным cost_rub=1.00 (как на prod 25.05.2026).
+            $costRub = '1.00';
+        } else {
+            $costRub = (string) $b1->cost_rub;
+        }
+
+        DB::table('suppliers')->updateOrInsert(
+            ['code' => 'direct'],
+            [
+                'name' => 'DIRECT — Прямые проекты',
+                'cost_rub' => $costRub,
+            ]
+        );
+    }
+
+    public function down(): void
+    {
+        DB::table('suppliers')->where('code', 'direct')->delete();
+    }
+};