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 columns = yield* sql<{ readonly name: string }>`    PRAGMA table_info(projection_threads)  `;   if (columns.some((column) => column.name === "archived_at")) {    return;  }   yield* sql`    ALTER TABLE projection_threads    ADD COLUMN archived_at TEXT  `;});