diff --git a/.gitignore b/.gitignore
index 269d32a..3e7ec8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,5 +20,3 @@ yarn-error.log
 /docs/API
 /docs/*.xlsx
 /docs/pptx
-
-
diff --git a/database/migrations/2026_04_16_174321_add_status_to_machines_table.php b/database/migrations/2026_04_16_174321_add_status_to_machines_table.php
new file mode 100644
index 0000000..65e7f25
--- /dev/null
+++ b/database/migrations/2026_04_16_174321_add_status_to_machines_table.php
@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('machines', function (Blueprint $table) {
+            $table->string('status')->default('offline')->after('location')->comment('機台狀態: online, offline, error');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('machines', function (Blueprint $table) {
+            $table->dropColumn('status');
+        });
+    }
+};