E2E Integration and Scaffolding Tests

[NgocAnhDo26]

Background

Each team member is building pieces. We need someone to ensure they all work together visually on Backstage and functionally on the k3d cluster.

Specific Steps:

• Test the .NET and Java templates: Scaffold them from UI, verify Tekton Pipeline success, check ArgoCD sync, and verify Pod health.
• Test PostgREST and Hasura templates: Verify they can successfully read the database provisioned by the operator.
• Add nice logos, readable titles, and descriptions metadata to all new Backstage templates so the Software Catalog looks professional.

Expected Output

All Sprint 3 templates are tested end-to-end, fully documented in docs/, and visually polished on the Backstage portal.