publish: ichthyo eggs to ERDDAP

[bbest]

Workflow

• File: publish_ichthyo-eggs_to_erddap.qmd
• Source ingest: ingest_swfsc_ichthyo (subset: fish egg counts/stages)
• Portal: ERDDAP

Checklist

• Egg measurement types defined (counts, stages)
• /publish-template ichthyo-eggs erddap scaffolded
• Egg subset extracted from ichthyo
• ERDDAP attributes defined
• Validated and uploaded to GCS
• _targets.R updated
• PR reviewed & merged

Dependencies

• Depends on: release_database (or ingest_swfsc_ichthyo)