feat: implement metadata catalog database management

2026-08-27 22:43:54 +02:00
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+# Separate physical and logical relationships
+
+ThothII persists each database-declared foreign-key constraint as an immutable Catalog
+Relationship with ordered column pairs, so composite keys retain their identity and the database
+remains the authority for physical structure. Curated or AI-inferred Logical Relationships will
+use a separate future model and lifecycle rather than being mixed with physical constraints or
+denormalized into textual column fields; this keeps synchronization authoritative without
+preventing later semantic enrichment.