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_projects    ADD COLUMN default_model_options_json TEXT  `;   yield* sql`    UPDATE projection_projects    SET default_model_options_json = NULL    WHERE default_model_options_json IS NULL  `;   yield* sql`    ALTER TABLE projection_threads    ADD COLUMN model_options_json TEXT  `;   yield* sql`    UPDATE projection_threads    SET model_options_json = NULL    WHERE model_options_json IS NULL  `;});