## Description
Adds Swagger API documentation for branded email layouts, including the
account-level layout endpoint, Email inbox update field, and generated
API schemas. This stacked PR keeps the implementation review in #14936
focused on the product change.
Related:
[CW-7514](https://linear.app/chatwoot/issue/CW-7514/branded-html-email-templates-per-inboxbrand)
Depends on #14936
## Type of change
- [x] This change requires a documentation update
## How to test
1. Run `bundle exec rake swagger:build`.
2. Start Chatwoot locally and open `http://localhost:3000/swagger`.
3. Verify the branded email layout account endpoint and Email inbox
`branded_email_layout` field appear in the API reference.
## Checklist
- [x] I have performed a self-review of my changes
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
Documents the existing API inbox webhook_url request field and expands
inbox create/update request docs with channel-specific schemas and
examples.
Closes#14591
## Why
API inboxes already accept channel.webhook_url through Channel::Api
editable attributes, but the OpenAPI request schemas did not document
the field. The previous mixed channel object also made it hard to see
which fields belong to each supported channel type.
## What changed
- Added named channel payload schemas for supported inbox create channel
types.
- Added channel-specific create request samples in this order: Website
inbox, API channel, Email channel, LINE channel, Telegram channel,
WhatsApp channel, SMS channel.
- Added common inbox fields such as greeting_enabled, greeting_message,
enable_auto_assignment, working_hours_enabled, and timezone to request
samples.
- Kept website-only flags such as allow_messages_after_resolved and
enable_email_collect only in website inbox samples.
- Annotated inbox request field descriptions with channel availability
where Swagger UI cannot dynamically filter fields.
- Added channel-specific update settings schemas and request samples for
editable channel attributes.
- Documented channel.webhook_url for API inbox create/update payloads.
- Rebuilt generated Swagger JSON and tag-group specs.
## Screenshots
**Website inbox request sample**
Shows the request sample selector set to Website inbox, including
website-only fields such as enable_email_collect and
allow_messages_after_resolved.
<img width="3840" height="2160" alt="Website inbox request sample"
src="https://github.com/user-attachments/assets/ad130f04-b336-4cc3-aba1-e934b646d447"
/>
**API channel request sample**
Shows the selector switched to API channel, with API-specific fields
such as webhook_url, hmac_mandatory, and additional_attributes.
<img width="3840" height="2160" alt="API channel request sample"
src="https://github.com/user-attachments/assets/09484816-1d47-490f-9ab4-195835ed5cd3"
/>
**Expanded channel schema**
Shows the request-body schema with channel expanded, including the type
selector and channel-specific fields under it.
<img width="3840" height="2160" alt="Expanded channel schema"
src="https://github.com/user-attachments/assets/f6c4878e-ac34-40fe-8be3-5913f27cbdd8"
/>
## Validation
- bundle exec rake swagger:build
- bundle exec rspec spec/swagger/openapi_spec.rb
- Rendered the local Swagger page and verified the request sample
dropdown order and API channel payload.
---------
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
