Added leak test readings migration file

database/migrations/2026_05_29_125118_create_leak_test_readings_table.php

@@ -0,0 +1,46 @@
+<?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::create('leak_test_readings', function (Blueprint $table) {
+        //     $table->id();
+        //     $table->timestamps();
+        // });
+        $sql = <<<'SQL'
+            CREATE TABLE leak_test_readings (
+                id                      BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+
+                plant_id                BIGINT NOT NULL,
+
+                item_code               TEXT NOT NULL,
+                serial_number           TEXT NOT NULL,
+                test_status             TEXT NOT NULL,
+
+                created_at              TIMESTAMP NOT NULL DEFAULT NOW(),
+                updated_at              TIMESTAMP NOT NULL DEFAULT NOW(),
+                deleted_at              TIMESTAMP,
+
+                FOREIGN KEY (plant_id)  REFERENCES  plants (id)
+            );
+        SQL;
+
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('leak_test_readings');
+    }
+};