import * as Effect from "effect/Effect";import * as SqlClient from "effect/unstable/sql/SqlClient"; export default Effect.gen(function* () {  const sql = yield* SqlClient.SqlClient;   yield* sql`    ALTER TABLE projection_threads    ADD COLUMN runtime_mode TEXT NOT NULL DEFAULT 'full-access'  `;   yield* sql`    UPDATE projection_threads    SET runtime_mode = 'full-access'    WHERE runtime_mode IS NULL  `;});