Fix ORM introspection: preserve partial unique indexes and one-to-many relations

Fix ORM introspection: preserve partial unique indexes and one-to-many relations targets a $4.8B = 2M businesses × $2.4K ACV total addressable market with medium saturation and a year-over-year growth rate of 10% YoY — developer tools and DBaaS segments growing as per industry reports and Stack Overflow trends.

Key trends driving demand: ORM and schema generation adoption is increasing — more teams rely on automated introspection and codegen, creating demand for correctness tools.; Shift to cloud-managed databases and DBaaS — centralized platforms accelerate schema changes and increase the surface area for introspection bugs.; Rise of CI/CD for database changes — teams adopt automated migration previews and checks, which creates an opening for tooling that prevents dangerous introspection errors..