Composables

pages/index.vue
  ├── useMarketConfigStore  (Pinia)
  ├── useCandles  ─── useApi
  ├── useSessions ─── useApi (sessions, макс 50 дней — бек truncate)
  └── useSettings

components/CandlesChart.vue
  ├── useChart (onNeedMoreHistory ← loadMoreHistory)
  ├── useSessionBoxes
  └── useDrawings

useApi — инжект из плагина charts-api.client. useSettings — обёртка над Pinia store settings.