Added characteristics approve master migration file

database/migrations/2026_01_06_140155_create_characteristic_approver_masters_table.php

@@ -0,0 +1,49 @@
+<?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
+    {
+        $sql = <<<'SQL'
+            CREATE TABLE characteristic_approver_masters (
+                id					               	BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+
+                plant_id                            BIGINT NOT NULL,
+                machine_id                          BIGINT NOT NULL,
+                machine_name                        TEXT DEFAULT NULL,
+                characteristic_field                TEXT DEFAULT NULL,
+                name1                               TEXT DEFAULT NULL,
+                mail1                               TEXT DEFAULT NULL,
+                name2                               TEXT DEFAULT NULL,
+                mail2                               TEXT DEFAULT NULL,
+                name3                               TEXT DEFAULT NULL,
+                mail3                               TEXT DEFAULT NULL,
+
+                created_at							TIMESTAMP NOT NULL DEFAULT NOW(),
+                updated_at							TIMESTAMP NOT NULL DEFAULT NOW(),
+                created_by							TEXT DEFAULT NULL,
+                updated_by							TEXT DEFAULT NULL,
+                deleted_at			                TIMESTAMP,
+
+                FOREIGN KEY (plant_id) REFERENCES plants(id),
+                FOREIGN KEY (machine_id) REFERENCES machines(id)
+            );
+        SQL;
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('characteristic_approver_masters');
+    }
+};