442 auto commit inverse smartlinks during relationship persistence commit pass 2

[owleyeview]

Auto-commit inverse SmartLinks during relationship persistence (Pass 2)

Summary

• Extends commit_functions::commit() Pass 2 to automatically resolve and persist inverse SmartLinks whenever a declared forward relationship is committed, enforcing the MAP schema contract that all declared relationships are bidirectional and materialized
• Adds resolve_inverse_relationship_name() which traverses the type graph (DescribedBy → InstanceRelationships → match TypeName → HasInverse → inverse TypeName) to derive the inverse relationship name from staged or persisted schema
• Adds commit_inverse_smartlinks() which writes reversed-endpoint SmartLinks for each local target, skipping external targets
• Introduces AssertRelatedHolons test step as the preferred replacement for QueryRelationships body assertions, comparing related-member sets by sorted identity (key + HolonId)
• Adds inverse_smartlink_fixture end-to-end test proving bidirectional traversal after commit with staged schema
• Documents the loader/commit boundary: the loader stages only declared relationships, commit materializes inverses

Test plan

• inverse_smartlink_test validates forward (Book → AuthoredBy → [Person1, Person2]) and inverse (Person1 → Authors → [Book], Person2 → Authors → [Book]) traversal after commit
• Full npm run sweetest suite passes — no regressions in simple_add_remove_related_holons_fixture (undescribed holons) or loader_client_fixture (bootstrap schema)
• CI green

Out of scope

• StagedHolon state model changes (StagedHolon State Model: Versioning vs Graph-Only Updates #443)
• Duplicate detection / idempotency (Nursery-Level Duplicate Detection and Idempotent SmartLink Persistence #444)
• Inverse deletion semantics
• Persisted-schema inverse resolution test (covered implicitly by loader fixture; dedicated test deferred)

Closes #442