Find donor tasks done in TickTick but not logged in DonorPerfect

**Objective:** Find donor-related TickTick tasks completed in the last `{days}` days (default 14) that have no matching contact logged in DonorPerfect.

**Step 1: Read completed tasks (TickTick)**

Call `ticktick-get-completed-tasks` with `completed-time.from` set to today minus `{days}` days. If `{project}` is given pass it as `project-name`. Keep id, title, completed-time.

**Step 2: Match donors (DonorPerfect)**

From each title take the donor name and call `donorperfect-get-donor` with `last-name.contains`. Accept one clear match; mark several matches "ambiguous" and no match "not a donor task".

**Step 3: Check the contact log (DonorPerfect)**

For each matched donor call `donorperfect-get-contact` with the donor-id and `contact-date.from` set to the same start date. A task counts as logged if a contact exists within 2 days of the task's completed-time.

**Step 4: Report**

Unlogged tasks: task title, completed date, donor, donor-id. Logged tasks: task title, contact-id, activity-code. Ambiguous and not-donor lists. Offer the log-completed-tasks-as-donor-contacts prompt for the unlogged ones.

**Rules & Guidelines:**

* `ticktick-get-completed-tasks` is on the TickTick server; `donorperfect-get-donor` and `donorperfect-get-contact` are on the DonorPerfect server.
* Read only. Never call any of: `ticktick-add-task`, `ticktick-update-task`, `ticktick-complete-task`, `ticktick-delete-task`, `ticktick-batch-tasks`, `ticktick-move-task`, `ticktick-add-comment`, `donorperfect-save-donor`, `donorperfect-save-gift`, `donorperfect-save-pledge`, `donorperfect-save-contact`, `donorperfect-save-address`, `donorperfect-save-link`, `donorperfect-set-flag`, `donorperfect-save-other-info`.

**Validation:**

* If no tasks were completed in the window, report that and stop.
* Never treat an ambiguous donor match as logged or unlogged; keep it in its own list.