Update earliestAvailableSlot for backfill and expiry

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#7,997 opened on Jun 23, 2025 0 comments 0 reactions 1 assignee Claimed by @matthewkeil View on GitHub

prio-low spec-fulu :zebra:

Description

### Problem description

Need to update earliest slot for both backfill and when we expire data from the DB due to data availability window.

Follow-up to https://github.com/ChainSafe/lodestar/pull/7959

### Solution description

Update earliestAvailableSlot from the correct locations

### Additional context

_No response_

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