Milestone 2: module/model docs (MD, Sphinx RST, PDF) and work log

74 source modules documented with extracted signatures, JSDoc params,
imports, and call graphs. 10 first-class models (PriceRule through
StatusResponse) have their own MD/RST/PDF. Sphinx HTML builds from
docs/sphinx. Per-module PDFs in docs/modules-pdf and docs/models-pdf.

Middleware gates 2–6 and 10 pass on MOCK_VERAE without NATS.

Learned: RST includes are relative to the RST file; keep one PDF per
module; Add Numbers remains the only push required tomorrow.

docs/modules/zappier/portal.md

@@ -0,0 +1,63 @@
+# `zappier/portal`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/portal.ts`  
+**Lines:** 285
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`PaymentResult`, `PaymentClient`, `PortalDeps`, `portalRouter`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| interface | `PaymentResult` |
+| interface | `PaymentClient` |
+| interface | `PortalDeps` |
+
+## Functions
+
+| Name | Parameters | Param types (JSDoc) | Returns | Calls (same file / helpers) |
+|------|------------|---------------------|---------|-----------------------------|
+| `publicProfile` | `c: Customer` | — | `unknown` | see Call graph |
+|  | _Profile payload safe to return to the customer (no hashes/secrets)._ | | | |
+| `sessionAuth` | `deps: PortalDeps` | — | `unknown` | see Call graph |
+| `save` | `deps: PortalDeps, customer: Customer` | — | `unknown` | see Call graph |
+| `portalRouter` | `deps: PortalDeps` | — | `unknown` | see Call graph |
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `reload` | `customer: Customer, amountCents: number` |
+| `return` | `req, res, next` |
+
+## What it imports / requires
+
+- `crypto`
+- `express`
+- `./accounts`
+- `./admin`
+- `./auth`
+- `./billing/credit`
+- `./invoicing`
+- `./pricing`
+- `./usage`
+
+## Call graph (identifiers invoked)
+
+`now`, `reload`, `customer`, `publicProfile`, `sessionAuth`, `header`, `startsWith`, `slice`, `get`, `list`, `find`, `status`, `json`, `next`, `save`, `portalRouter`, `post`, `trim`, `test`, `hashPassword`, `findByEmail`, `randomBytes`, `toString`, `create`, `verifyPassword`, `verifyTotp`, `use`, `delete`, `setUTCDate`, `setUTCHours`, `summaryFor`, `tiers`, `applyMonthlyCredit`, `rateCard`, `type`, `send`, `renderInvoiceHtml`, `async`, `generateTotpSecret`, `totpUri`, `qr`, `isInteger`, `put`
+
+Each identifier is a call site in this file. Follow the import list to see the defining module; open that module’s MD for parameter and return types.
+
+## Return values (how to read this)
+
+- HTTP route handlers return Express `res.json(...)` bodies (see route docs).
+- Zapier `perform` functions return a **single object** (creates) or an **array** (triggers/searches).
+- Pricing functions return integer **cents** on `Quote.totalCents`.
+