## 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
Adds Skooma-based OpenAPI validation so SDK-facing request specs can
assert that documented request and response contracts match real Rails
behavior. This also upgrades the spec to OpenAPI 3.1 and fixes contract
drift uncovered while validating core application and platform
resources.
Closes
None
Why
We want CI to catch OpenAPI drift before it reaches SDK consumers. While
wiring validation in, this PR surfaced several mismatches between the
documented contract and what the Rails endpoints actually accept or
return.
What this change does
- Adds Skooma-backed OpenAPI validation to the request spec flow and a
dedicated OpenAPI validation spec.
- Migrates nullable schema definitions to OpenAPI 3.1-compatible unions.
- Updates core SDK-facing schemas and payloads across accounts,
contacts, conversations, inboxes, messages, teams, reporting events, and
platform account resources.
- Documents concrete runtime cases that were previously missing or
inaccurate, including nested `profile` update payloads, multipart avatar
uploads, required profile update bodies, nullable inbox feature flags,
and message sender types that include both `Captain::Assistant` and
senderless activity-style messages.
- Regenerates the committed Swagger JSON and tag-group artifacts used by
CI sync checks.
Validation
- `bundle exec rake swagger:build`
- `bundle exec rspec spec/swagger/openapi_spec.rb`
---------
Co-authored-by: Sojan Jose <sojan@pepalo.com>
