Add full Elasticsearch integration service with detailed PHPDoc annotations

	•	Added comprehensive ElasticsearchService class with methods for indexing, deleting, and searching documents.
	•	Implemented clean Laravel HTTP client integration using configurable host via config/encrypted-search.php.
	•	Added complete PHPDoc blocks for all public methods and class-level documentation.
	•	Ensures the encrypted search package can operate fully in Elasticsearch mode when enabled.

Author: ginkelsoft-development

.env.example

@@ -2,11 +2,3 @@ SEARCH_PEPPER=your-long-random-string-here
 ENCRYPTED_SEARCH_ELASTIC_ENABLED=true
 ELASTICSEARCH_HOST=http://elasticsearch:9200
 ELASTICSEARCH_INDEX=encrypted_search
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-[![Tests](https://github.com/ginkelsoft-development/laravel-encrypted-search-index/actions/workflows/tests.yml/badge.svg)](https://github.com/ginkelsoft-development/laravel-encrypted-search-index/actions/workflows/tests.yml)
-[![Latest Version on Packagist](https://img.shields.io/packagist/v/ginkelsoft/laravel-encrypted-search-index.svg?style=flat-square)](https://packagist.org/packages/ginkelsoft/laravel-encrypted-search-index)
-[![Total Downloads](https://img.shields.io/packagist/dt/ginkelsoft/laravel-encrypted-search-index.svg?style=flat-square)](https://packagist.org/packages/ginkelsoft/laravel-encrypted-search-index)
-[![License](https://img.shields.io/github/license/ginkelsoft-development/laravel-encrypted-search-index.svg?style=flat-square)](LICENSE.md)
-[![Laravel](https://img.shields.io/badge/Laravel-8--12-brightgreen?style=flat-square&logo=laravel)](https://laravel.com)
-[![PHP](https://img.shields.io/badge/PHP-8.1%20--%208.4-blue?style=flat-square&logo=php)](https://php.net)