Compare a Rillet customer with its AvaTax customer

**Objective:** Find the customer matching `{customer}` (a name or email address) in both Rillet and AvaTax and report where their details differ. AvaTax company is `{company}` (default: the default company).

**Step 1: Find the Rillet customer**

If `{customer}` contains an at sign, call `rillet-get-customer-emails` and match on email, then take its customer-id. Otherwise call `rillet-get-customers` and match names containing `{customer}`. Then read the full row from `rillet-get-customers` for that customer-id. If several match, list them (name, city, customer-id) and stop.

**Step 2: Find the AvaTax customer**

Call `avalara-avatax-get-customer`. Use `email-address` when you have an email, otherwise `name.contains` with the Rillet customer name, with `company` if given. If several match, list them and stop. If none, report the customer as present in Rillet and absent from AvaTax and stop.

**Step 3: Compare and add context**

Compare name, city, region (Rillet state) , postal-code (Rillet zip-code) and country. Treat case, punctuation and state abbreviations versus full names as equal. Then call `avalara-avatax-get-transaction` with the AvaTax customer-code and report the count of transactions and the latest date. Call `rillet-get-invoices` and report the customer's invoice count and latest invoice date.

**Step 4: Report**

A table of field, Rillet value, AvaTax value, and Same or Different. Then one line on activity in each system and whether the AvaTax customer-code looks like it corresponds to the Rillet customer-id or name.

**Rules & Guidelines:**

* Tools whose names start with avalara-avatax are on the avalara-avatax server; tools whose names start with rillet are on the rillet server. Both servers must be connected.
* This prompt is read-only. Never call any AvaTax action tool (for example `avalara-avatax-transaction-create`, `avalara-avatax-transaction-adjust`, `avalara-avatax-transaction-void`, `avalara-avatax-transaction-commit`) or any Rillet add, update, apply or set tool (for example `rillet-add-invoice`, `rillet-update-invoice`, `rillet-add-credit-memo`).
* Report what the two systems show. Do not present the result as a filed tax return or as tax advice.
**Validation:**

* If the match on either side is a guess from a partial name, say so.
* Never suggest edits as done; at most list what you would change.