/**
 * # org — pods and books (the org model in the language)
 *
 * Charter: the org is **data**, not structure around the code. The **Pod** is the
 * recursive node — an allocating role (**PM**) + a risk envelope + children, where each
 * child is a **Book** (the leaf, the only place positions and orders live, run by a
 * **Trader** under an assigned **Coverage**) or another Pod. Depth is unbounded; a
 * standing Kestrel document the PM revises even intraday. Depth-independent invariants
 * hold at every edge: **budgets nest** (child ⊆ parent), **authority only narrows
 * downward**, **positions live at leaves only**, and **Risk (L0) outranks every node
 * including the root**. Org facts are **path-scoped series** resolved lexically like ESM
 * (`pnl` = my scope; a child's `pnl` under its name; `children(any).drawdown` as a PM's
 * wake operand). Humans always sit above the root: a pod is the largest thing that runs
 * on its own.
 *
 * **DEFERRED (no code satisfies this charter).** This module is charter prose only: the Pod / Book /
 * PM / Trader / Coverage structure described above is NOT implemented here and no runtime path depends on
 * it. The org model that actually RUNS today is the path-scoped org-facts resolver in
 * {@link ../engine/orgfacts.ts} — that is the running source of truth for org series; treat this barrel as
 * a design charter awaiting a later milestone, not as live surface.
 */