fix: correct dead links after cloud-storage folder restructure

- rook.md: update ../cluster.md path (moved one level deeper)
- architecture/index.md: add trailing slash to cloud-storage link

Author: senolcolak

docs/architecture/cloud-storage/rook.md

@@ -28,7 +28,7 @@ mechanisms.
 Rook continuously monitors cluster health and automatically responds to
 failures by restarting failed daemons, replacing unhealthy OSDs, and
 maintaining desired state as defined in the cluster specifications. It
-integrates with [Kubernetes](./cluster.md) monitoring and logging systems,
+integrates with [Kubernetes](../cluster.md) monitoring and logging systems,
 providing visibility into storage operations alongside application workloads.
 
 ## See Also 

docs/architecture/index.md

@@ -13,4 +13,4 @@ CobaltCore is built on top of OpenStack and IronCore, leveraging their capabilit
 - **Greenhouse**: The monitoring and management tool that provides insights into the health and performance of the CobaltCore environment.
 - [**HA Service**](./cluster#ha-service): The high availability service that ensures critical workloads remain operational even in the event of failures.
 - [**Cortex**](./cortex): Smart initial placement and scheduling service for compute, storage, and network in cloud-native cloud environments.
-- [**Cloud Storage**](./cloud-storage): Ceph-based distributed storage stack including Rook, Chorus, Arbiter, and Prysm for lifecycle management, replication, quorum, and observability.
+- [**Cloud Storage**](./cloud-storage/): Ceph-based distributed storage stack including Rook, Chorus, Arbiter, and Prysm for lifecycle management, replication, quorum, and observability.