{"service":"index-worker","env":"production","data_source":"yahoo","history_floor":"2025-01-01","endpoints":{"GET  /indexes":"list active indexes","GET  /indexes/:id":"meta + latest snapshot","GET  /indexes/:id/snapshot":"latest snapshot (cdn 60s)","GET  /indexes/:id/history?days=30":"snapshot history","GET  /indexes/:id/constituents":"active constituents","GET  /widget?lang=en|zh&sort=1d|order":"Bloomberg-style HTML monitor of all baskets","GET  /tile/data?lang=en|zh&sort=1d|order":"Tile-shape JSON for QueryBinding source=index_snapshots","POST /trigger/cron":"incremental fetch + recompute (auth)","POST /trigger/backfill":"force full refetch from 2025-01-01 (auth)"}}