feat:(omkar_cache_api):explored cache api to fetch latest added blogs

[omkartidke42]

This PR introduces a new custom Drupal module, omkar_cache_api, which caches the latest published blog posts to enhance performance and reduce database load. The module provides a service for fetching blog posts with caching support, an event subscriber to invalidate the cache when blog posts are updated, and a controller to display the cached data on a custom route.

📦 Features Included
Custom Service:
BlogCacheService fetches and caches the latest published blog posts using cache.default.

Controller:
BlogController exposes the /latest-blogs route to display cached blog post titles as links.

Event Subscriber:
BlogEventSubscriber listens to node.insert, node.update, and node.delete events for the blog content type and clears the cache accordingly.

Dependency Injection:
All services (logger, entity type manager, cache) are injected properly using constructor injection to follow Drupal best practices.

Custom Route:
/latest-blogs displays the latest blog posts using a themed item list.

🧩 Files Added
omkar_cache_api.services.yml – Registers services and dependencies.

BlogCacheService.php – Core logic for caching.

BlogController.php – Handles route and display logic.

BlogEventSubscriber.php – Automatically clears cache on blog entity changes.

omkar_cache_api.routing.yml – Adds custom route for latest blogs.

omkar_cache_api.info.yml – Module metadata.

omkar_cache_api.module – Empty stub file, currently unused.

🧪 How to Test
Enable the module:
drush en omkar_cache_api

Visit /latest-blogs — should show latest blog posts (or a "No blogs available" message).

Create, update, or delete a blog post — the list should refresh due to cache invalidation.

📌 Notes
Uses @logger.channel.omkar_cache_api for scoped logging.

Cache uses tag node_list for proper invalidation.

Designed for Drupal 11 (core_version_requirement: ^11).

[shriaas-qed]

This implementation for caching is incorrect, you don't need to create your own service. Check official documentation: https://www.drupal.org/docs/drupal-apis/cache-api