feat(dna): allow multiple shared autosomal imports per profile

[simonellefsen]

Summary

• Add Add shared match on the DNA tab to create a new Shared Autosomal test and open the CSV picker
• Label existing-card import as Replace this match CSV to avoid accidental overwrites
• Let handleAddDNATest accept an optional test type and return the new test id

Test plan

• Open a profile with an existing Shared Autosomal import (e.g. Birgitta Hallgren ↔ Pernille Gamby)
• Click Add shared match and import a second shared-segments CSV (e.g. Helle Andersen Due)
• Save profile and confirm both matches persist after reload
• npm run typecheck and pre-commit lint pass locally

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Project	Deployment	Actions	Updated (UTC)
linegra	Ready	Preview, Comment	Jul 5, 2026 5:47pm