[aramprice]

The pipeline's jumpbox Git source will target main. This is a write source, so it retains an explicit branch.

Validation: git diff --check passed. Parsed before/after comparisons confirm only the intended Git branch selectors changed. Local fly validate-pipeline --strict passed.

Merge the source preparation before the coordinated native branch rename. Apply the explicit main pipeline source only once main exists.

Concourse Git resource contract: a read-only source can omit branch; a source used for put needs an explicit branch.

This PR changes checked-in files only. Deployed pipeline reconfiguration and runtime checks remain operator-owned; no Concourse pipelines or jobs were modified, paused, unpaused, or triggered for this work.

Cutover plan:

• jumpbox-deployment: steps and related PRs

Shared community configuration (draft): cloudfoundry/community#1682

[aramprice]

afaik these pipelines aren't run anywhere