header_buttons

Cross-pane controls live in a compact header above the pane stack.
- " Sync with editor " toggle: panes follow the active editor and cursor by default; when off, stay pinned on the last focused idea.
- hop_depth_control: global graph hop depth for context search, graph slice, references, and ancestors — not a boolean toggle.
- " Open in Ideas Summary ": reveal ideas-summary-panel.ts with the ideas table filtered to the current file, or the graph tab centred on the current idea.
- " Export slice ": JSON or CSV of the current neighbourhood only ( lighter than workspace export_JSON / export_csv ).
- " Copy as markdown ": copy the focused idea plus parents and reference lists for pasting into chat or PRs.
- Refresh control tied to index readiness.
- info_site_link

Interactive page: header_buttons