Every list route in the API — /pools, /pairs, /candles and /prices/history — now pages with the same cursor and limit parameters and the same opaque cursor shape that /screener already used, backed by keyset pagination so rows inserted while a client pages can never shift a page boundary, with all defaults and maxima documented per route in openapi.yaml and the behaviour locked down by tests including one that inserts a row mid-page. - #429