/**
 * # adapters — the edges (broker, market-data feed, lake)
 *
 * Charter: the platform's outer seams, where implementations vary but the interface does
 * not. **Broker execution** is BYO-broker — the client's own plans through the client's
 * own account via a broker adapter or broker MCP; Kestrel never holds custody. The
 * **market-data feed** is the live tick/quote source, colocated with the runtime. The
 * **lake** is chDB over object storage (R2/GCS), native in TS/Bun — read-only history
 * for Grade and sim. Modes **sim | paper | live** are one code path through the Session;
 * only the gate adapter behind this seam differs, which is what makes honest grading
 * structural rather than a promise.
 *
 * (Phase 1: broker + feed are charter only. The **lake** accessor is implemented under
 * `./lake/` — chDB over object storage with a local hot cache — and imported directly from
 * `src/adapters/lake/index.ts` by Grade/sim. The barrel stays charter-only by design; see
 * `tests/smoke.test.ts`.)
 *
 * NOTE: this barrel exports nothing on purpose — the empty barrel is intentional documentation, not an
 * oversight. Broker + feed are charter-only (no code yet), and the lake accessor is imported directly from
 * `src/adapters/lake/index.ts` rather than re-exported here, so there is deliberately no public surface to
 * re-export. Do not "fix" this by adding exports.
 */