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/sphinx/modules/zappier/db/admin-user-repo.md

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+# `zappier/db/admin-user-repo`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/admin-user-repo.ts`  
+**Lines:** 72
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`SqliteAdminUserRepo`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| class | `SqliteAdminUserRepo` |
+
+## Functions
+
+| Name | Parameters | Param types (JSDoc) | Returns | Calls (same file / helpers) |
+|------|------------|---------------------|---------|-----------------------------|
+| `toAdminUser` | `r: Record<string, unknown>` | — | `unknown` | see Call graph |
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `list` | `(none)` |
+| `findByUsername` | `username: string` |
+| `save` | `user: AdminUser` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+- `../admin-users`
+
+## Call graph (identifiers invoked)
+
+`constructor`, `exec`, `admin_users`, `seeded`, `prepare`, `get`, `save`, `makeAdminUser`, `list`, `all`, `map`, `findByUsername`, `toAdminUser`, `run`
+
+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`.
+

docs/sphinx/modules/zappier/db/admin-user-repo.rst

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+zappier.db.admin-user-repo
+==========================
+
+Generated API sheet for ``zappier/db/admin-user-repo``.
+
+.. include:: admin-user-repo.md
+   :literal:

docs/sphinx/modules/zappier/db/billing-repo.md

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+# `zappier/db/billing-repo`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/billing-repo.ts`  
+**Lines:** 69
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`BillingReportRepo`, `JobLockRepo`, `SqliteBillingReportRepo`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| interface | `BillingReportRepo` |
+| interface | `JobLockRepo` |
+| class | `SqliteBillingReportRepo` |
+
+## Functions
+
+_No top-level functions extracted._
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `getReportedCents` | `customerId: string, period: string` |
+| `upsertReportedCents` | `customerId: string, period: string, cumulativeCents: number` |
+| `tryAcquireLock` | `name: string, ttlMs: number` |
+| `releaseLock` | `name: string` |
+| `constructor` | `private db: Database.Database,
+    private now: (` |
+| `getReportedCents` | `customerId: string, period: string` |
+| `upsertReportedCents` | `customerId: string, period: string, cumulativeCents: number` |
+| `tryAcquireLock` | `name: string, ttlMs: number` |
+| `releaseLock` | `name: string` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+
+## Call graph (identifiers invoked)
+
+`getReportedCents`, `upsertReportedCents`, `tryAcquireLock`, `releaseLock`, `constructor`, `exec`, `billing_reports`, `job_locks`, `prepare`, `get`, `run`, `now`
+
+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`.
+

docs/sphinx/modules/zappier/db/billing-repo.rst

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+zappier.db.billing-repo
+=======================
+
+Generated API sheet for ``zappier/db/billing-repo``.
+
+.. include:: billing-repo.md
+   :literal:

docs/sphinx/modules/zappier/db/customer-repo.md

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+# `zappier/db/customer-repo`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/customer-repo.ts`  
+**Lines:** 113
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`SqliteCustomerRepo`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| class | `SqliteCustomerRepo` |
+
+## Functions
+
+| Name | Parameters | Param types (JSDoc) | Returns | Calls (same file / helpers) |
+|------|------------|---------------------|---------|-----------------------------|
+| `toCustomer` | `r: Record<string, unknown>` | — | `unknown` | see Call graph |
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `constructor` | `private db: Database.Database, seed: Customer[] = []` |
+| `findByApiKey` | `apiKey: string` |
+| `findByEmail` | `email: string` |
+| `list` | `(none)` |
+| `save` | `customer: Customer` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+- `../auth`
+
+## Call graph (identifiers invoked)
+
+`constructor`, `exec`, `customers`, `ensureColumn`, `prepare`, `get`, `save`, `table_info`, `all`, `some`, `findByApiKey`, `toCustomer`, `findByEmail`, `lower`, `list`, `map`, `run`
+
+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`.
+

docs/sphinx/modules/zappier/db/customer-repo.rst

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+zappier.db.customer-repo
+========================
+
+Generated API sheet for ``zappier/db/customer-repo``.
+
+.. include:: customer-repo.md
+   :literal:

docs/sphinx/modules/zappier/db/invoice-repo.md

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+# `zappier/db/invoice-repo`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/invoice-repo.ts`  
+**Lines:** 120
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`SqliteInvoiceRepo`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| class | `SqliteInvoiceRepo` |
+
+## Functions
+
+_No top-level functions extracted._
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `constructor` | `private db: Database.Database` |
+| `save` | `invoice: Invoice` |
+| `get` | `id: string` |
+| `list` | `filter: { customerId?: string; period?: string; status?: Invoice['status'] }` |
+| `nextSequence` | `period: string` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+- `../invoicing`
+
+## Call graph (identifiers invoked)
+
+`constructor`, `exec`, `invoices`, `invoice_lines`, `save`, `prepare`, `run`, `get`, `toInvoice`, `list`, `push`, `join`, `all`, `map`, `nextSequence`
+
+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`.
+

docs/sphinx/modules/zappier/db/invoice-repo.rst

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+zappier.db.invoice-repo
+=======================
+
+Generated API sheet for ``zappier/db/invoice-repo``.
+
+.. include:: invoice-repo.md
+   :literal:

docs/sphinx/modules/zappier/db/pricing-store.md

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+# `zappier/db/pricing-store`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/pricing-store.ts`  
+**Lines:** 107
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`SqlitePricingStore`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| class | `SqlitePricingStore` |
+
+## Functions
+
+_No top-level functions extracted._
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `constructor` | `private db: Database.Database,
+    seedCard: RateCard = DEFAULT_RATE_CARD,
+    seedTiers: TierConfig[] = DEFAULT_TIERS,` |
+| `getRateCard` | `(none)` |
+| `getTiers` | `(none)` |
+| `upsertEndpoint` | `endpointId: string, rule: PriceRule` |
+| `deleteEndpoint` | `endpointId: string` |
+| `upsertTier` | `tier: TierConfig` |
+| `deleteTier` | `tierId: string` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+- `../pricing`
+
+## Call graph (identifiers invoked)
+
+`constructor`, `exec`, `price_endpoints`, `tiers`, `prepare`, `get`, `entries`, `upsertEndpoint`, `upsertTier`, `getRateCard`, `all`, `parse`, `getTiers`, `map`, `run`, `stringify`, `deleteEndpoint`, `deleteTier`
+
+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`.
+

docs/sphinx/modules/zappier/db/pricing-store.rst

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+zappier.db.pricing-store
+========================
+
+Generated API sheet for ``zappier/db/pricing-store``.
+
+.. include:: pricing-store.md
+   :literal:

docs/sphinx/modules/zappier/db/session-repo.md

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+# `zappier/db/session-repo`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/session-repo.ts`  
+**Lines:** 52
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`SqliteSessionRepo`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| class | `SqliteSessionRepo` |
+
+## Functions
+
+_No top-level functions extracted._
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `constructor` | `private db: Database.Database` |
+| `create` | `customerId: string, ttlMs: number` |
+| `get` | `token: string, nowMs = Date.now(` |
+| `delete` | `token: string` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+- `../accounts`
+
+## Call graph (identifiers invoked)
+
+`constructor`, `exec`, `portal_sessions`, `create`, `now`, `newSessionToken`, `prepare`, `run`, `get`, `delete`
+
+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`.
+

docs/sphinx/modules/zappier/db/session-repo.rst

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+zappier.db.session-repo
+=======================
+
+Generated API sheet for ``zappier/db/session-repo``.
+
+.. include:: session-repo.md
+   :literal:

docs/sphinx/modules/zappier/db/usage-repo.md

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+# `zappier/db/usage-repo`
+
+**Package:** `zappier`  
+**Source:** `packages/zappier/src/db/usage-repo.ts`  
+**Lines:** 62
+
+## What this module is
+
+Implementation module in `zappier`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`SqliteUsageRepo`
+
+## Types / interfaces / classes
+
+| Kind | Name |
+|------|------|
+| class | `SqliteUsageRepo` |
+
+## Functions
+
+_No top-level functions extracted._
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `constructor` | `private db: Database.Database` |
+| `record` | `entry: UsageEntry` |
+| `listFor` | `customerId: string, since?: Date` |
+| `summaryFor` | `customerId: string, since?: Date` |
+
+## What it imports / requires
+
+- `better-sqlite3`
+- `../usage`
+
+## Call graph (identifiers invoked)
+
+`constructor`, `exec`, `usage_entries`, `record`, `prepare`, `run`, `getTime`, `listFor`, `all`, `map`, `summaryFor`, `summarize`
+
+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`.
+

docs/sphinx/modules/zappier/db/usage-repo.rst

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+zappier.db.usage-repo
+=====================
+
+Generated API sheet for ``zappier/db/usage-repo``.
+
+.. include:: usage-repo.md
+   :literal: