//! Gateway endpoints that expose generic CRUD access routes backed by Supabase/Postgres clients.
//!
//! Each submodule implements one slice of functionality (delete, fetch, insert, query, update)
//! and wires up the Actix request handlers that power the `/gateway/*` routes.
//!
//! # Example
//! ```text
//! /gateway/data -> fetch::fetch_data_route
//! /gateway/insert -> insert::insert_data
//! /gateway/delete -> delete::delete_data
//! /gateway/query -> query::gateway_query_route
//! ```