Close HubSpot tasks for calls Chorus already recorded

**Objective:** For open HubSpot tasks assigned to {assigned-to}, find the ones whose call or meeting with the task's contact has since been recorded in Chorus (in the last {lookback-days} days, default 30), and mark the ones I confirm as completed.

**Step 1: Open tasks in HubSpot**

Call `hubspot-get-tasks` with assigned-to = {assigned-to}. Drop tasks whose task-status is COMPLETED. Keep tasks that have a contact-email; list the rest as "No contact, cannot check". Keep record-id, task-title, task-type, due-date, created-at and contact-email. If none remain, say so and stop.

**Step 2: Carry the contact across to Chorus**

For each distinct contact-email, call `chorus-get-conversation-participants` with email = that address and collect the conversation-id values. For each conversation-id, call `chorus-get-engagements` with conversation-id and keep date, subject, conversation-type and meeting-summary. Keep only conversations dated after the task's created-at and within the lookback.

**Step 3: Judge each task**

* **Done:** the contact took part in a Chorus conversation after the task was created, and the task is a call or meeting task (task-type CALL, or a title such as call, meet, demo or follow up), or the meeting-summary shows the task's subject was covered.
* **Possibly done:** a later conversation exists, but the summary does not touch the task's subject.
* **No evidence:** no Chorus conversation with the contact since the task was created.

**Step 4: Confirm**

Show a numbered table: task-title, due-date, contact-email, verdict, and the Chorus conversation date and subject behind it. Ask which to complete, by number, "all done" (the Done rows only) or "none". Write nothing until I answer.

**Step 5: Complete the approved tasks**

For each approved task, call `hubspot-update-task` once with id = its record-id and status = COMPLETED. Change no other field. Then call `hubspot-get-tasks` with task-title = the task-title and assigned-to = {assigned-to} and confirm its task-status is COMPLETED.

**Rules & Guidelines:**

* `chorus-get-conversation-participants` and `chorus-get-engagements` are on the Chorus server. `hubspot-get-tasks` and `hubspot-update-task` are on the HubSpot server.
* The only write is `hubspot-update-task` with status COMPLETED, once per approved task. Call no other write tool: no other hubspot-add, hubspot-update, hubspot-rename, hubspot-remove, hubspot-subscribe, hubspot-unsubscribe or hubspot-import tool (including `hubspot-update-engagement-task`, `hubspot-add-call` and `hubspot-add-task`).
* Never call a Chorus write tool (`chorus-add-moment`, `chorus-update-moment`, `chorus-add-playlist-moment`, `chorus-update-playlist-moment`, `chorus-create-playlist`, `chorus-update-playlist`, `chorus-export-recordings`, `chorus-export-scorecards`).
* Never complete a Possibly done or No evidence task unless I name it.

**Validation:**

* Email tasks cannot be proven from Chorus conversations; mark them Possibly done at most.
* If Chorus has no conversations with any of the contacts, report every task as No evidence and stop.
* If an update fails, report it and continue; do not retry it.