Issue
infraUtils.stageWrapper uses a long if/else chain on env.STAGE_NAME to decide behavior. This is hard to extend and not data-driven.

Steps to reproduce
1. Review stageWrapper() in vars/infraUtils.groovy.
2. Observe repeated stage name comparisons and body() calls.

Expected result
Stage handling is data-driven using a set/map of special stage names or a strategy map.

Actual result
Hard-coded if/else chain controls stage behavior.

Plan

• Introduce a Set of stage names that skip labels or require special handling.
• Replace if/else chain with membership checks and a default path.
• Document the list and provide a single place to add new stage rules.