Add migration for process_orders table with necessary fields and foreign keys

database/migrations/2025_09_09_184321_create_process_orders_table.php

@@ -0,0 +1,40 @@
+<?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
+    {
+        $sql = <<<'SQL'
+            CREATE TABLE process_orders (
+                id					               	BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+                plant_id							BIGINT NOT NULL,
+                item_id							    BIGINT NOT NULL,
+                process_order                       TEXT DEFAULT NULL,
+                created_at							TIMESTAMP NOT NULL DEFAULT NOW(),
+                updated_at							TIMESTAMP NOT NULL DEFAULT NOW(),
+                created_by							TEXT DEFAULT NULL,
+                updated_by							TEXT DEFAULT NULL,
+                deleted_at			                TIMESTAMP,
+
+                FOREIGN KEY (plant_id)              REFERENCES  plants (id),
+                FOREIGN KEY (item_id)               REFERENCES items(id)
+            );
+        SQL;
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('process_orders');
+    }
+};