Screen NetSuite cash paid for duplicates

**Objective:** Review cash paid from {date-from} to {date-to} (default the last 30 days), optionally to one {vendor}.

**Step 1: Payments**

Call `netsuite-get-check`, `netsuite-get-vendorpayment` and `netsuite-get-checkexpense` with `date.from`, `date.to` and `vendor` where given.

**Step 2: Screen**

Flag: the same vendor paid the same amount twice within the range, checks with no memo, and the largest 10 items.

**Step 3: Report**

Totals by vendor and by payment type, the flagged items with their document numbers, and the overall total disbursed. State if amounts were unavailable on a record type.

**Rules & Guidelines:**

* This is a read-only job. Do not call any tool whose name starts with netsuite-add- or netsuite-update-, and never change, create or delete a record.
* Report only what the tools return. Do not estimate or invent figures; if a total is needed, add up the rows you actually retrieved and say so.
* If a read returns the maximum number of rows, say the result may be truncated and suggest narrowing the filters.
* Dates are YYYY-MM-DD. Where an input is blank, use the default stated in the Objective.

**Validation:**

* If a read returns nothing, say so and stop rather than guessing.
* If an input is ambiguous, list the candidates and ask which one is meant.