See a HubSpot contact's Stripe billing without a Stripe login

**Objective:** For the contact with email `{email}`, show their HubSpot record and company beside their Stripe billing: subscriptions, open invoices and charges in the last `{lookback-days}` days (default 90).

**Step 1: Find the contact in HubSpot**

Call `hubspot-get-contacts` with `email` = `{email}`. If nothing comes back, note that the contact is absent from HubSpot and continue to Step 2 with the email alone. Note `record-id`, `first-name`, `last-name`, `company-id`, `company-name`, `lifecycle-stage`, `lead-status` and `contact-owner`.

If the contact has a `company-id`, call `hubspot-get-deals` with `company-id` = that value and keep the open deals (stage not closed won or closed lost).

**Step 2: Find the customer in Stripe**

Call `stripe-get-customer` with `email` = `{email}`. If nothing comes back, report the contact as present in HubSpot and absent from Stripe and stop after the report. If both HubSpot and Stripe return nothing, say the email is unknown in both and stop.

**Step 3: Read billing in Stripe**

For each Stripe `customer-id`:

* `stripe-get-subscription` with `customer-id`.
* `stripe-get-invoice` with `customer-id` and `status` = open.
* `stripe-get-charge` with `customer-id` and `created.from` = today minus `{lookback-days}` days (default 90).

**Step 4: Report**

1. HubSpot: name, company, lifecycle stage, lead status, owner, open deals (name, stage, amount).
2. Stripe: customer-id, delinquent, balance.
3. Subscriptions: status, current period end, cancel at period end.
4. Open invoices: number, total, amount remaining, due date, hosted invoice link.
5. Charges: count succeeded, count failed with each failure-message, any refunded or disputed.
6. Anything that needs attention, in one short list.

**Rules & Guidelines:**

* `hubspot-get-contacts` and `hubspot-get-deals` are on the hubspot server; `stripe-get-customer`, `stripe-get-subscription`, `stripe-get-invoice` and `stripe-get-charge` are on the stripe server.
* Read-only. Do not call `hubspot-update-contact`, `hubspot-add-contact-note`, `hubspot-add-contact` or any other HubSpot add or update tool.

**Validation:**

* Compare emails case-insensitively and trimmed.
* If Stripe returns more than one customer for the email, report each one separately and flag the duplicate.
* If `{lookback-days}` is empty or not a number, use 90.