IEBH-483: Deploy lineage-event-handler service in dev

[vmoshynskyi]

• Deploy lineage-event-handler service in dev.

[Copilot]

Pull request overview

This PR adds a new ArgoCD application + Helm wrapper chart to deploy the lineage-event-handler service into the dev cluster, and updates centralized versions/docs to reflect the new component.

Changes:

• Adds a new clusters/dev/apps/lineage-event-handler ArgoCD Application and Helm wrapper chart (based on the existing metadata-event-handler chart).
• Adds lineage-event-handler image tag pin to clusters/dev/versions.yaml.
• Updates README service table and removes LINEAGE_SERVICE from dataops env (dev + prod).

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
README.md	Documents the new Atlas + lineage event handler components in the app-of-apps table.
clusters/prod/apps/dataops/values.yaml	Removes LINEAGE_SERVICE from prod dataops env (scope/intent needs confirmation).
clusters/dev/versions.yaml	Adds the dev image tag pin for lineage-event-handler.
clusters/dev/apps/lineage-event-handler/values.yaml	Defines dev Helm values for lineage-event-handler deployment (needs key/type fixes).
clusters/dev/apps/lineage-event-handler/Chart.yaml	Introduces the Helm wrapper chart for lineage-event-handler (needs dependency alias fix).
clusters/dev/apps/lineage-event-handler/application.yaml	Adds the ArgoCD Application for lineage-event-handler in dev.
clusters/dev/apps/dataops/values.yaml	Removes LINEAGE_SERVICE from dev dataops env.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.