//! Infrastructure layer — drives Storage and Rendering as adapters.
//!
//! - [`storage`] — SQLite (rusqlite) adapter implementing graph persistence
//! - [`rendering`] — Prompt / Markdown / JSON / ASCII rendering adapter (thin wrapper over `template`)
//! - [`template`] — Template Engine Plugin trait (`HandlebarsEngine` default impl)
//! - [`adapter`] — Layer 6 SoT Adapter Plugin trait (`MiniAppAdapter` / `FileAdapter`)