This pull request significantly improves Azure support in the Karpenter integration, updates documentation for multi-cloud provisioning, and adds new example manifests for deploying and scaling workloads on Azure and Nebius. The most important changes are grouped below:

Azure Karpenter Support & Examples

• Added example manifests for Azure: AKSNodeClass, CPU and GPU NodePools, and sample CPU/GPU deployments to demonstrate how to provision and scale Azure VMs using Karpenter. (karpenter/examples/azure/nodeclass.yaml [1] karpenter/examples/azure/cpu_nodepool.yaml [2] karpenter/examples/azure/gpu_nodepool.yaml [3] karpenter/examples/azure/cpu_deployment.yaml [4] karpenter/examples/azure/gpu_deployment.yaml [5]
• Updated the documentation to describe Azure support, prerequisites, required permissions, and step-by-step instructions for deploying and scaling workloads on Azure with Karpenter. (docs/usages/karpenter.md [1] [2] [3] [4]

Documentation Improvements

• Clarified that Karpenter supports both Azure and Nebius, updated terminology, and improved instructions for setting up role assignments and connectivity for Azure VMs. (docs/usages/karpenter.md [1] [2] [3] [4]

CRD and RBAC Additions

• Added CRD reference for KaitoNodeClass and updated the controller cluster role to grant access to new resources. (karpenter/charts/karpenter/crds/kaito.sh_kaitonodeclasses.yaml [1] karpenter/charts/karpenter/templates/clusterrole.yaml [2]

Image and Version Updates

• Updated the Karpenter controller image tag and digest to use the latest version. (karpenter/charts/karpenter/values.yaml karpenter/charts/karpenter/values.yamlL97-R99)

Nebius Example Improvements

• Updated Nebius example deployments to use more descriptive names and set a default wireguardPeerCIDR. (karpenter/examples/nebius/cpu_deployment.yaml [1] karpenter/examples/nebius/gpu_deployment.yaml [2] karpenter/examples/nebius/nodeclass.yaml [3]