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`    CREATE INDEX IF NOT EXISTS idx_projection_thread_activities_thread_sequence_created_id    ON projection_thread_activities(thread_id, sequence, created_at, activity_id)  `;   yield* sql`    CREATE INDEX IF NOT EXISTS idx_projection_thread_messages_thread_created_id    ON projection_thread_messages(thread_id, created_at, message_id)  `;});