Phase 3, service layer. CareerProfileService now maintains the relational children
as the source of truth for structured career data, with the StructuredCvProfile
blob kept as a derived projection.
- SaveVersionAsync additionally syncs the relational children (replace-all,
preserving ItemKeys from the blob item ids; SortOrder = array position) and the
LongTailJson (contact, summary, interests, other sections, metadata).
- New LoadStructuredAsync reads the master profile from the relational children,
lazily backfilling from the ProfileJson blob for profiles that predate Phase 3.
- CareerProfileMapper: the two-way projection between relational rows and
StructuredCvProfile.
Tests (+5): round-trip through relational, item-key preservation, wholesale child
replacement (no orphans), backfill from a pre-Phase-3 blob, empty profile.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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