Close HubSpot tasks for meetings Granola already captured

**Objective:** For open HubSpot tasks assigned to `{assigned-to}`, find the ones whose call or meeting with the task's contact has since taken place in Granola (in the last `{lookback-days}` days, default 30), and mark the ones the user confirms as completed.

**Step 1: Open tasks (HubSpot)**

Call `hubspot-get-tasks` with assigned-to set to the value given. 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: Look for a later meeting (Granola)**

For each task, call `granola-get-attendee` with email set to the contact-email and note-created.from set to the later of the task's created-at and today minus the lookback days. Join on email, ignoring case. For each distinct note-id returned, call `granola-get-note` with id set to it and keep title, created-at and summary.

**Step 3: Judge each task**

* **Done:** a Granola meeting with the contact took place 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, review or check-in), or the summary shows the task's subject was covered.
* **Possibly done:** a meeting with the contact took place, but its summary does not mention the task's subject.
* **No evidence:** no Granola meeting with the contact since the task was created.

**Step 4: Confirm**

Show a numbered table: task-title, due-date, contact-email, verdict, and the Granola meeting title and date that supports it. Ask which tasks to complete, by number, "all done" (the Done rows only) or "none". Write nothing until the user answers.

**Step 5: Complete the approved tasks**

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

**Rules & Guidelines:**

* `granola-get-attendee` and `granola-get-note` are on the Granola 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-task` and `hubspot-add-meeting`). The Granola server is only read.
* Never complete a Possibly done or No evidence task unless the user names it.

**Validation:**

* If Granola has no meetings with any of the contacts, report every task as No evidence and stop.
* If an update fails, report it and continue with the next task; do not retry it.