What adding a provider actually takes

The ElevenLabs site proved this by carrying a stub of the next one: a provider page is one Markdown file with front-matter, and the comparison follows from it. At the hub level, adding a site to this family is:

1. A repository, from the same template — the build system, the gate and the release pipeline are the same files.
2. A patterns: block in its report's front-matter, per product. That is what this hub syncs.
3. A row in data/providers.yml, added by running bin/sync-providers.py rather than typed.

No template surgery, and no edit to the comparison page. If adding the second provider requires either, the contract is wrong and the fix belongs in the contract rather than in the page.