reference_lists_pane

Actionable inbound and outbound reference lists for the focused idea.
- Inbound: ideas that reference the focus ( edges to the focus ).
- Outbound: ideas and files the focus references ( edges from the focus ).
- Group entries by edge kind ( dependency, related to, file ref, incompatible, etc. ) in collapsible sections.
- Show a short snippet or source line explaining why each edge exists where available.
- Text filter scoped to this pane only ( not the full ui-sql layer ).
- " Add to context " pins an idea into context_tray for Copilot / @ reqlan workflows.
- reference_resolution_parity: panel resolution must match the editor file view.
- unresolved_reference_create: unresolved idea targets get a create affordance, not a dead file link.
Implemented by ReferenceListsPane.svelte.

Interactive page: reference_lists_pane