Enroll Capsule CRM deal contacts in the right Drip series

**Objective:** Add the people on open Capsule CRM opportunities at milestone `{milestone-name}` to the Drip campaign named `{campaign-name}`, but only those already active in Drip and not yet in that campaign.

**Step 1: Find the Drip campaign**

Call `drip-get-campaign` with `name.contains` set to `{campaign-name}`. If none or more than one matches, list what came back and stop. Keep its `campaign-id` and `status`. If its status is not active, warn the user that subscribers will not receive email until the campaign is activated.

**Step 2: Find the opportunities**

Call `capsule-crm-get-opportunity` with `milestone-name` set to `{milestone-name}`. Keep only those with no `closed-on-date`. Keep `name`, `party-name` and `value`.

**Step 3: Get the contacts' emails**

For each opportunity, call `capsule-crm-get-party` with `name` set to its `party-name` and keep `email`. If that party is an organization, also call `capsule-crm-get-party` with `organization-name.contains` set to its name and keep each person's `email`.

**Step 4: Check them in Drip**

For each email:

* Call `drip-get-subscriber` with `email` set to it. Keep it only if a subscriber comes back with status active.
* Call `drip-get-campaign-subscriber` with `email` set to it and `campaign-id` set to the campaign's `campaign-id`. Drop it if they are already in the campaign.

**Step 5: Confirm, then enroll**

Show a table: email, opportunity, milestone, value. Ask the user to confirm. Do not enroll anyone until they say yes.

After confirmation, for each row call `drip-add-subscriber-to-campaign` once with `campaign_id` set to the campaign's `campaign-id` and `email` set to the email.

**Step 6: Report**

People enrolled, people already in the campaign, and contacts not enrolled because they are not active Drip subscribers.

**Rules & Guidelines:**

* Tools whose names start with drip- are on the drip MCP server; tools whose names start with capsule-crm- are on the capsule-crm MCP server. If either set is missing, stop and say which server is not connected.
* Match people across the two systems by email address only, compared case-insensitively after trimming spaces. Never match on name alone.
* The only tool that may write is `drip-add-subscriber-to-campaign`, and only for emails that Step 4 proved are active Drip subscribers. It creates a new subscriber for an unknown email, so never pass it an email that is not already in Drip.
* Do NOT call these Drip tools: `drip-add-subscriber`, `drip-update-subscriber`, `drip-add-subscriber-tag`, `drip-remove-subscriber-tag`, `drip-remove-subscriber-from-campaign`, `drip-remove-subscriber-from-all-campaigns`, `drip-unsubscribe-subscriber`, `drip-start-subscriber-workflow`, `drip-remove-subscriber-from-workflow`, `drip-activate-campaign`, `drip-pause-campaign`, `drip-activate-workflow`, `drip-pause-workflow`.
* Do NOT call these Capsule CRM tools: `capsule-crm-add-party`, `capsule-crm-update-party`, `capsule-crm-add-note`, `capsule-crm-update-note`, `capsule-crm-add-task`, `capsule-crm-update-task`, `capsule-crm-add-opportunity`, `capsule-crm-update-opportunity`, `capsule-crm-add-case`, `capsule-crm-update-case`.

**Validation:**

* If no open opportunities sit at `{milestone-name}`, say so and stop. Call `capsule-crm-get-milestone` to list valid milestone names if the name may be wrong.
* If `drip-add-subscriber-to-campaign` fails for one person, report the error and carry on with the rest.