sandbox: clean child

[roodboi]

Second clean stacked PR targeting sandbox-clean-base.

Scenario:

• clean stack
• child branch for submit, sync, and parent advancement checks

[changeset-bot]

⚠️ No Changeset found

Latest commit: a0e7a2e

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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