import * as SqlClient from "effect/unstable/sql/SqlClient";import * as Effect from "effect/Effect"; export default Effect.gen(function* () {  const sql = yield* SqlClient.SqlClient;   const columns = yield* sql<{ readonly name: string }>`    PRAGMA table_info(projection_thread_sessions)  `;  if (!columns.some((column) => column.name === "provider_instance_id")) {    yield* sql`      ALTER TABLE projection_thread_sessions      ADD COLUMN provider_instance_id TEXT    `;  }   yield* sql`    CREATE INDEX IF NOT EXISTS idx_projection_thread_sessions_instance    ON projection_thread_sessions(provider_instance_id)  `;});