Added pallet validation table migration file

database/migrations/2025_05_19_122842_create_pallet_validations_table.php

@@ -0,0 +1,50 @@
+<?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
+    {
+        $sql = <<<'SQL'
+            CREATE TABLE pallet_validations (
+                id                          BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+
+                plant_id                    BIGINT NOT NULL,
+
+                pallet_number               TEXT NULL,
+                serial_number               TEXT NOT NULL,
+                pallet_status               TEXT NULL,
+                locator_number              TEXT NULL,
+                locator_quantity            INT NOT NULL DEFAULT (0),
+
+                created_at                  TIMESTAMP NOT NULL DEFAULT NOW(),
+                updated_at                  TIMESTAMP NOT NULL DEFAULT NOW(),
+                scanned_at                  TIMESTAMP NOT NULL DEFAULT NOW(),
+                deleted_at                  TIMESTAMP,
+
+                created_by                  TEXT NOT NULL,
+                scanned_by                  TEXT NOT NULL,
+                updated_by                  TEXT NULL,
+
+                UNIQUE (plant_id, serial_number),
+                FOREIGN KEY (plant_id)      REFERENCES  plants (id)
+            );
+        SQL;
+
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('pallet_validations');
+    }
+};