feat(whatsapp): send native location request from get user data

[JuanBifrost]

Summary

When Get User Data uses the Location reply format on WhatsApp, the step now sends Cloud API interactive.location_request_message (the native “Send location” button) using the connected channel token. Other channels keep a text prompt.

The inbound pin is stored as lat,lng on the output custom field. Typed lat,lng is still accepted as a fallback.

Tested in production on a WhatsApp Cloud API channel.

How to test

1. Add Get User Data with reply format Location.
2. On WhatsApp, confirm the native location button (not a URL or Call API step).
3. Send a pin and confirm the output field is latitude,longitude.
4. On a non-WhatsApp channel, confirm a text prompt still appears.

Screenshots

Native Cloud API location button (Get User Data, Location format):

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Contact sends the pin; the step stores lat,lng on the output field. Any following lat / lon lines in the chat come from a separate Execute JavaScript mapping step, not from this PR:

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