Symmetric relationship types (isdirectional flag, migration 7d19) show
one entry per peer on the relationships card - a Dualpath pair no
longer lists its partner twice - and directional types read naturally
instead of Outgoing/Incoming. Deleting a collapsed entry removes every
underlying direction row.
Propagation is now real (migration 7d20): relationship types declare
propagation-through pairs in relationshiptypepropagations (M:N,
replacing the never-consumed single column); creating a controls link
on either bay of a Dualpath pair auto-creates it on the partner,
mirrored across both endpoints because live data stores controls as
bay -> PC. flask relationships propagate backfills existing data (29
rows fanned out on the WJ dataset, idempotent).
This also completes the tree that commit 1d21bf0 accidentally split
(core/models/__init__ imported RelationshipTypePropagation ahead of the
file that defines it), returning CI to green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
4fd110a33d