Added request characteristics migration file

database/migrations/2026_01_06_112045_create_request_characteristics_table.php

@@ -0,0 +1,65 @@
+<?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 request_characteristics (
+                id					               	BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+
+                plant_id                            BIGINT NOT NULL,
+                machine_id                          BIGINT NOT NULL,
+                item_id                             BIGINT NOT NULL,
+                characteristic_approver_master_id   BIGINT NOT NULL,
+                aufnr                               TEXT DEFAULT NULL,
+                characteristic_name                 TEXT DEFAULT NULL,
+                current_value                       TEXT DEFAULT NULL,
+                update_value                        TEXT DEFAULT NULL,
+
+                approver_status1                    TEXT DEFAULT NULL,
+                approver_status2                    TEXT DEFAULT NULL,
+                approver_status3                    TEXT DEFAULT NULL,
+
+                approver_remark1                    TEXT DEFAULT NULL,
+                approver_remark2                    TEXT DEFAULT NULL,
+                approver_remark3                    TEXT DEFAULT NULL,
+
+                work_flow_id                        TEXT DEFAULT NULL,
+                mail_status                         TEXT DEFAULT NULL,
+                trigger_at                          TIMESTAMP,
+
+                approved1_at			            TIMESTAMP,
+                approved2_at			            TIMESTAMP,
+                approved3_at			            TIMESTAMP,
+
+                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),
+                FOREIGN KEY (item_id) REFERENCES items(id),
+                FOREIGN KEY (characteristic_approver_master_id) REFERENCES characteristic_approver_masters(id)
+            );
+        SQL;
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('request_characteristics');
+    }
+};