[APP] sms-florin

**Name of app / service**

sms-florin — https://flo-voice1.com — a REST API to rent real UK mobile numbers and receive SMS/OTP verification codes.

**Link to developer documentation**

https://flo-voice1.com/api-access — REST API (API-key / Bearer auth) plus an npm SDK. Key endpoints: `GET /api/v1/services`, `POST /api/v1/rentals`, `GET /api/v1/rentals/{id}`.

**Is lack of support preventing you from moving forward, or do you have a workaround?**

Workaround today is calling the REST API from a custom code step. Opening this to accompany PR #21863, which adds the `sms_florin` app and its components — the PR checklist notes that a new-app PR is only reviewed once the app integration has been requested, so this is that request.

**Are there specific actions or triggers you'd like to see for this app?**

Already implemented in PR #21863:
- **Trigger:** New SMS Received (polling source, 15-min timer, dedupe: unique)
- **Action:** Rent a Number
- **Action:** Get Rental

Start with PR #21863, which contains the sms_florin app and its components, then compare the implementation with the developer documentation at flo-voice1.com/api-access. Verify the New SMS Received trigger, Rent a Number action, and Get Rental action against the listed REST endpoints; the request is complete when the integration is reviewed.

Written by the indexing model from the issue text.