Set up a Bloomerang sponsor as a Business Central customer once

**Objective:** Make sure the Bloomerang organization `{organization}` has a Business Central customer in company `{company}` (blank means the connector's default company), creating one from its Bloomerang details if it is missing, and record the link on the Bloomerang record.

**Step 1: Find the organization (Bloomerang)**

Call `bloomerang-get-constituent` with `full-name.contains` = `{organization}` and `type` = Organization. If more than one matches, list them and stop. If none match, say so and stop.

Then call `bloomerang-get-address` with `account-id` = the constituent `id` and `primary` = true, and `bloomerang-get-phone` with the same filters.

**Step 2: Check for an existing customer (Business Central)**

Call `business-central-get-customer` with `email` = the constituent's `primary-email`, and again with `name.contains` = `{organization}`. Pass `{company}` as `company` on every Business Central call; omit it when blank. If either returns a customer, report its number and name, skip Steps 3 and 4, and go straight to Step 5 only if the user asks for the link to be recorded.

**Step 3: Show the plan and wait**

Show the customer that would be created: display name (the constituent's `full-name`), type Company, email, phone, address line 1, city, state, postal code and country. Ask the user to confirm and to give a customer number if they do not want Business Central to assign one. Do not write anything until they confirm in their next message.

**Step 4: Create the customer (Business Central)**

After confirmation, call `business-central-create-customer` once with those values, plus `number` only if the user gave one. Keep the returned `number`.

**Step 5: Record the link (Bloomerang)**

Call `bloomerang-add-note` with `account-id` = the constituent `id`, today's date as `date`, and `note` = `Business Central customer <number> (company {company})`.

**Step 6: Confirm**

Call `business-central-get-customer` with `customer-number` = the new number and report it next to the Bloomerang constituent.

**Rules & Guidelines:**

* `bloomerang-get-constituent`, `bloomerang-get-address`, `bloomerang-get-phone` and `bloomerang-add-note` are on the bloomerang server. `business-central-get-customer` and `business-central-create-customer` are on the business-central server.
* The only write tools this prompt may call are `business-central-create-customer` (once, after confirmation) and `bloomerang-add-note` (once).
* Do NOT call `business-central-update-customer`, `business-central-create-contact`, `bloomerang-update-constituent` or any other write tool.

**Validation:**

* Never create a customer when Step 2 found a likely match. Ask the user instead.
* If the constituent has no address or email, create the customer with what exists and list the missing fields.
* If `business-central-create-customer` fails, report the error and do not add the Bloomerang note.