Pathway B B1 mode previously rendered an empty result area on every
state — the runB1Search() output target was #fristen-search-results,
which lives inside the B2 panel. When B2 is hidden (B1 active), the
results were written into a hidden subtree and never seen.
Changes:
- TSX: add #fristen-b1-results inside #fristen-b1-panel, below the
cascade button row.
- frontend/fristenrechner.ts: extract renderSearchResultsInto() and
wirePillClicks(); runB1Search now writes to fristen-b1-results,
fetches /api/.../search?browse=all when no slug is picked yet (full
landscape on entry), and applies CSS-driven loading dim with a seq
guard against out-of-order responses. Hoisted loadAndRenderB1() so
showBMode("tree") can trigger the tree load on Pathway B entry
(radio.checked = true does not fire change events).
- backend: SearchOptions.BrowseAll, allMappedConceptIDs() returning
the union of every concept reachable from any leaf via
paliad.event_category_concepts, lifted limit ceiling for browse
modes (default 200, max 500). Handler exposes ?browse=all.
- CSS: shared loading-state styling for fristen-b1-results.
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