[template] work-email-waterfall

[github-actions[bot]]

Work Email Waterfall - vote for this workflow with a thumbs-up reaction on this post.

Find a work email for a person when you know their name and company domain, by trying providers in cost order and validating the winner. Each provider step only runs if the previous ones came up empty, so you never pay twice for the same row.

Template: https://github.com/MattSezgin/unofficial-clay-cli/tree/main/community/templates/work-email-waterfall

Questions and improvement ideas welcome below.