feat: add support for nodeSelector and tolerations

[qasmi]

#22

[Copilot]

Pull Request Overview

This PR adds Kubernetes pod scheduling support by introducing nodeSelector, tolerations, affinity, and topologySpreadConstraints configuration options to the Helm chart. This enables users to control where their pods are scheduled based on node characteristics and constraints.

• Added four new scheduling configuration options to values.yaml with appropriate defaults
• Updated deployment template to conditionally include these scheduling configurations
• Enhanced topologySpreadConstraints with automatic labelSelector injection when not provided

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
helm/kagent-tools/values.yaml	Adds new scheduling configuration fields with comments and example values
helm/kagent-tools/templates/deployment.yaml	Implements conditional rendering of scheduling configurations in the pod spec

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[EItanya]

@dimetron, this PR is making me realize that we need helm unit tests

[qasmi]

@EItanya I will add the unit tests

[EItanya]

LGTM, and thanks so much for adding unit tests :)