Build a HubSpot collections list in minutes

**Objective:** Build a collections list of overdue HubSpot invoices with at least `{min-balance}` due (default 0), for `{company-name}` (default: every customer).

**Step 1: Overdue invoices**

Call `hubspot-get-invoices` with `due-date.to` = yesterday, `balance-due.min` = `{min-balance}` (or 0.01 when blank), and `latest-company-name.contains` = `{company-name}` when given. Drop any invoice whose `invoice-status` is voided or draft.

**Step 2: Group by customer**

Group by `company-name`. For each customer: invoice count, total balance due, oldest due date, and the worst `age-category`.

**Step 3: Who to contact and what has come in**

For each customer, take the `contact-email` on its invoices. Call `hubspot-get-commerce-payments` with `customer-email` = that address over the last 30 days to see whether a payment is already in flight.

**Step 4: Report**

* Customer table, largest balance first: customer, invoices, balance due, oldest due date, days overdue, contact email, payment in last 30 days (amount and date, or none).
* Invoice detail table: invoice number, customer, invoice date, due date, amount billed, amount paid, balance due, PO number.
* Grand total overdue, and the share owed by the top three customers.

**Rules & Guidelines:**

* This prompt is read-only. Do NOT call any write tool: `hubspot-add-contact`, `hubspot-add-company`, `hubspot-add-deal`, `hubspot-add-ticket`, `hubspot-update-contact`, `hubspot-update-company`, `hubspot-update-deal`, `hubspot-update-ticket`, `hubspot-add-contact-note`, `hubspot-add-company-note`, `hubspot-add-deal-note`, `hubspot-add-ticket-note`.
* Do not draft or send reminder messages; this prompt only produces the list.
* Report amounts in each invoice's own currency; do not convert.

**Validation:**

* If nothing is overdue, say so.
* If an invoice has no contact email, flag it as "No contact on invoice".