Clean prepaid SoT, identity mailbox, public access planes, leaf policy, fleet spawn

Persist account-balance books; edge caches prepaid from books. Add zappier-identity, verae-nats-accounts, verae-jobs-events, verae-access-staff, zapier-decisions. Edge binds loopback; lan-134 stays off; HTTP services prefer local spawn.

docs/sphinx/modules/zappier-account-balance/persist.md

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+# `zappier-account-balance/persist`
+
+**Package:** `zappier-account-balance`  
+**Source:** `packages/zappier-account-balance/src/persist.js`  
+**Lines:** 29
+
+## What this module is
+
+Implementation module in `zappier-account-balance`. The tables below are extracted from the source (signatures + JSDoc).
+
+## Exports
+
+`booksPath`, `loadInto`, `saveFrom`
+
+## Types / interfaces / classes
+
+_None extracted._
+
+## Functions
+
+| Name | Parameters | Param types (JSDoc) | Returns | Calls (same file / helpers) |
+|------|------------|---------------------|---------|-----------------------------|
+| `booksPath` | `(none)` | — | `unknown` | see Call graph |
+| `loadInto` | `books` | — | `unknown` | see Call graph |
+| `saveFrom` | `books` | — | `unknown` | see Call graph |
+
+## Methods (class / object)
+
+| Name | Parameters |
+|------|------------|
+| `return` | `process.env.BOOKS_PATH ||
+    path.join(process.env.FLEET_STATE_DIR || process.cwd(` |
+
+## What it imports / requires
+
+- `node:fs`
+- `node:path`
+
+## Call graph (identifiers invoked)
+
+`booksPath`, `join`, `cwd`, `loadInto`, `existsSync`, `load`, `parse`, `readFileSync`, `saveFrom`, `mkdirSync`, `dirname`, `writeFileSync`, `stringify`, `dump`, `renameSync`
+
+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`.
+