Put low Freshdesk ratings next to the customer's Chorus calls

**Objective:** Find customers who gave Freshdesk satisfaction ratings at or below `{max-rating}` in the last `{lookback-days}` days (default 30) and show what Chorus says about their recent calls and scorecards.

**Step 1: Low ratings (Freshdesk)**

Call `freshdesk-get-satisfaction-ratings` with `rating.max` set to `{max-rating}` and `created-at.from` set to the lookback start. For each rating record ticket-id, user-id and feedback.

**Step 2: Who they are (Freshdesk)**

Call `freshdesk-get-contacts` with `contact-id` set to each user-id to get name, email and company-id.

**Step 3: Their calls (Chorus)**

For each email call `chorus-get-conversation-participants` with `email`. For each conversation-id call `chorus-get-engagements` with `conversation-id`, then `chorus-get-scorecards` with `conversation` set to that conversation-id.

**Step 4: Report**

Per customer: rating and feedback, the ticket, the most recent call (date, summary) and any scorecard result, then one line on whether the sales or success conversation reflects the support pain.

**Rules & Guidelines:**

* `freshdesk-get-satisfaction-ratings` and `freshdesk-get-contacts` are on the freshdesk server; `chorus-get-conversation-participants`, `chorus-get-engagements` and `chorus-get-scorecards` are on the chorus server.
* The join is the contact email.
* Do not call any create, update, delete, reply or note tool on either server (for example `freshdesk-add-ticket`, `freshdesk-update-ticket`, `freshdesk-add-ticket-note`, `freshdesk-reply-to-ticket`, `chorus-add-moment`, `chorus-update-moment`).

**Validation:**

* A customer with no Chorus conversation is reported as "no calls on record", not as an error.
* If no low ratings exist, say so and stop.