import * as Effect from "effect/Effect";import * as SqlClient from "effect/unstable/sql/SqlClient"; export default Effect.gen(function* () {  const sql = yield* SqlClient.SqlClient;   const sessionColumns = yield* sql<{ readonly name: string }>`    PRAGMA table_info(auth_sessions)  `;   if (!sessionColumns.some((column) => column.name === "last_connected_at")) {    yield* sql`      ALTER TABLE auth_sessions      ADD COLUMN last_connected_at TEXT    `;  }});