Butkhuzi Code Boundary Hardening

Sprint 76 performed the first real Butkhuzi code-boundary hardening pass.

The goal was not extraction yet. The goal was to reduce dependence on mixed svc-tenders surfaces where ownership was already clear.

What validation moved

Moved out of the mixed service-wide validator:

• butkhuziComponentSchema
• butkhuziReferenceMetaSchema
• upsertButkhuziNormSchema
• rebuildButkhuziChunksSchema

New Butkhuzi-owned validation module:

• services/svc-tenders/src/butkhuzi/validation.ts

Updated route dependency:

• services/svc-tenders/src/routes/registerButkhuziRoutes.ts now imports Butkhuzi validation from the local domain module rather than