Spot failed Stripe payments before you push a HubSpot deal

**Objective:** List Stripe customers with failed charges or overdue open invoices in the last `{lookback-days}` days (default 30) whose HubSpot company also has an open deal, so sales knows before pushing the deal forward.

**Step 1: Find payment problems in Stripe**

Call `stripe-get-charge` with `status` = failed and `created.from` = today minus `{lookback-days}` days (default 30), `max-records` 200.

Call `stripe-get-invoice` with `status` = open and `due-date.to` = today, `max-records` 200.

Group both by customer email (use `customer-email`; fall back to `stripe-get-customer` with `customer-id` when it is empty). For each customer keep: failed charge count, latest failure-message, total amount remaining on overdue invoices, currency.

If both calls return nothing, report that there are no failed payments or overdue invoices in the window and stop.

**Step 2: Carry each email across to HubSpot**

For each customer email, call `hubspot-get-contacts` with `email` = that address. If no contact matches, call `hubspot-get-companies` with `company-domain-name` = the email's domain (skip free mail domains such as gmail.com, outlook.com, yahoo.com, hotmail.com). If still nothing matches, put the customer in an "Unmatched in HubSpot" list and continue.

**Step 3: Check for open deals in HubSpot**

For each matched company id (the contact's `company-id` or the company's `record-id`), call `hubspot-get-deals` with `company-id`. Keep deals whose `deal-stage-name` is not closed won or closed lost.

**Step 4: Report**

A table sorted by open deal amount, largest first: company, Stripe customer email, failed charges, latest failure reason, overdue amount and currency, open deal name, deal stage, deal amount, deal owner.

Then: customers with payment problems but no open deal (count only), and the "Unmatched in HubSpot" list.

**Rules & Guidelines:**

* `stripe-get-charge`, `stripe-get-invoice` and `stripe-get-customer` are on the stripe server. `hubspot-get-contacts`, `hubspot-get-companies` and `hubspot-get-deals` are on the hubspot server.
* Read-only. Do not call `hubspot-add-deal-note`, `hubspot-update-deal`, `hubspot-add-company-note` or any other HubSpot add or update tool.
* Use `{min-amount}` (default 0) as the smallest failed charge amount or overdue balance worth listing.

**Validation:**

* A failed charge followed by a successful charge for the same invoice is recovered; list it as recovered, not failing.
* Compare emails case-insensitively. Never match on name alone.
* If `{lookback-days}` or `{min-amount}` is empty, use the defaults.