Add migration to add foreign key constraint for plant_id in users table

database/migrations/2025_09_25_112247_added_foreign_key_to_users.php

@@ -0,0 +1,33 @@
+<?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
+    {
+       $sql = <<<'SQL'
+            ALTER TABLE users
+            ADD COLUMN plant_id BIGINT DEFAULT NULL,
+            ADD CONSTRAINT users_plant_id_fkey
+            FOREIGN KEY (plant_id) REFERENCES plants(id);
+        SQL;
+
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('users', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};