Log new Pipedrive opportunities without duplicate records

**Objective:** Record a new opportunity with `{organization-name}`, contact `{contact-name}` (`{contact-email}`), as a `{create-as}` (default: lead), reusing existing records wherever they exist, and schedule a first follow-up.

**Step 1: Find what already exists**

* Organization: `pipedrive-get-organization` with `name` = `{organization-name}`, then `name.contains` if nothing matches. If several match, list them and ask which one.
* Person: if `{contact-email}` is given, `pipedrive-get-person` with `email`; otherwise with `name` = `{contact-name}` (and `organization-id` if the organization exists).
* Existing opportunity: if the organization exists, `pipedrive-get-deal` with `organization-id` and `status` = open, and `pipedrive-get-lead` with `organization-id` and `archived` = false. If there is already an open deal or lead for this contact, show it and ask whether to continue.
* For a deal: `pipedrive-get-pipeline` and `pipedrive-get-stage` so the user can pick the stage (default: leave `stage-id` empty so Pipedrive uses the first stage of the default pipeline).
* `pipedrive-get-activity-type` with `active` = true, to pick a valid key for the follow-up.

**Step 2: Propose, then wait**

Show the user what will be reused and what will be created: organization, person, the lead or deal (title "`{organization-name}` - opportunity" unless they give one), and a follow-up call due 2 business days from today. Wait for explicit confirmation.

**Step 3: Write, in this order**

The add tools return nothing, so re-read after each create to get the new ID.

1. If the organization is new: `pipedrive-add-organization` with `name`, then `pipedrive-get-organization` with `name` to get its organization-id.
2. If the person is new: `pipedrive-add-person` with `name`, `work-email` and `org-id`, then `pipedrive-get-person` with `email` (or `name`) to get their person-id.
3. Lead: `pipedrive-add-lead` with `title`, `organization-id` and `person-id`. Deal: `pipedrive-add-deal` with `title`, `org-id`, `person-id` and `stage-id` if chosen, then `pipedrive-get-deal` with `title.contains` to get the deal-id.
4. `pipedrive-add-activity` with `type`, `subject`, `due-date`, `person-id`, `org-id` and, for a deal, `deal-id`.

**Step 4: Confirm**

Report each record with its ID, marked as reused or created.

**Rules & Guidelines:**

* Never create an organization or person that already exists. Call each add tool at most once.
* Do not call any update tool.
* Leave `visible-to` at its default.

**Validation:**

* If `{create-as}` is not lead or deal, ask which one.
* If a create succeeds but the re-read does not find the new record, stop and report; do not create it again.