diff --git a/database/migrations/2026_06_26_130000_create_cache_table.php b/database/migrations/2026_06_26_130000_create_cache_table.php
new file mode 100644
index 0000000..45aa5d9
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+++ b/database/migrations/2026_06_26_130000_create_cache_table.php
@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * 建立 Laravel 標準 cache / cache_locks 表。
+ * 對應 dev 的修正 55cf6b8：CACHE_STORE=database 須有這兩張表，
+ * 否則 ProcessHeartbeat 等的 Cache::put 會因缺表而失敗。
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        if (!Schema::hasTable('cache')) {
+            Schema::create('cache', function (Blueprint $table) {
+                $table->string('key')->primary();
+                $table->mediumText('value');
+                $table->integer('expiration');
+            });
+        }
+
+        if (!Schema::hasTable('cache_locks')) {
+            Schema::create('cache_locks', function (Blueprint $table) {
+                $table->string('key')->primary();
+                $table->string('owner');
+                $table->integer('expiration');
+            });
+        }
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('cache');
+        Schema::dropIfExists('cache_locks');
+    }
+};