Editing Corpus/Schema (section)

=== Quarantine model ===

Edges with unresolved targets are stored with <code>target_id = NULL</code> and the raw citation in <code>reference</code>. They are visible to MCP and queryable for monitoring. The partial unique index <code>idx_edge_unique_without_target ON (source_id, reference, kind) WHERE target_id IS NULL</code> prevents duplicate quarantine entries.

'''Ownership:''' an edge is owned by the jurisdiction prefix of its <code>source_id</code>. Drop-and-reingest for jurisdiction X deletes edges WHERE <code>source_id LIKE '{x}.%'</code>. Cross-jurisdiction quarantine edges (e.g., EU NIM → FR target) survive the target jurisdiction's reingest.

'''Reconciliation:''' after each jurisdiction ingest, a post-ingest pass attempts to resolve quarantine edges whose reference matches the freshly ingested jurisdiction. Resolved → <code>UPDATE target_id</code>. Still unresolved → remains in quarantine.