Formasty machine-readable docs

Primary human API docs:
- /documentation/api-overview

Primary machine-readable API docs:
- /api-docs.txt

Summary:
- Formasty exposes a Forms API for creating, editing, saving drafts, publishing, and deleting forms.
- Canonical production base URL: https://formasty.com/api/v1
- Authentication: Authorization: Bearer <api_key>
- The API uses the same builder-compatible draftSchema contract as the main Formasty builder UI.
- A form can be created with a full draftSchema, updated later with another full draftSchema, published, and then opened at the returned public_url.

Core workflow:
1. POST /api/v1/forms
2. GET /api/v1/forms/{form_id}
3. PATCH /api/v1/forms/{form_id} or PUT /api/v1/forms/{form_id}/draft
4. POST /api/v1/forms/{form_id}/publish
5. Open data.public_url

Important notes:
- Public respondents only see published snapshots.
- Draft changes do not affect the hosted public form until publish succeeds.
- GET/PATCH/PUT draft responses return the resolved draft_schema.
- Publish returns the published_schema and the hosted public_url.