Update OpenAPI schema

[dotto-api-schema-updater]

This PR updates the OpenAPI schema from dotto-typespec.

Triggered by: fun-dotto/dotto-typespec@7c46061

[Copilot]

Pull request overview

Updates this repo’s OpenAPI spec and regenerated server bindings to introduce Firebase App Check as a first-class security scheme, and wires middleware enforcement through generated per-operation security markers.

Changes:

• Add FirebaseAppCheckAuth security scheme and make it the default global security requirement in openapi.yaml.
• Regenerate generated/api.gen.go to set per-operation security scope markers for App Check and (where needed) Bearer auth.
• Switch server bootstrapping to RegisterHandlersWithOptions to attach AppCheck/Auth middleware via generated handler options; add middleware unit tests.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
openapi/openapi.yaml	Adds Firebase App Check security scheme + updates operation/global security requirements.
internal/middleware/auth.go	Makes Bearer auth enforcement conditional on generated scope markers.
internal/middleware/auth_test.go	Adds tests for conditional Bearer auth and context extractors.
internal/middleware/appcheck.go	Makes App Check enforcement conditional on generated scope markers.
internal/middleware/appcheck_test.go	Adds tests for conditional App Check header enforcement.
generated/api.gen.go	Adds FirebaseAppCheckAuthScopes and sets required security markers per operation.
cmd/server/main.go	Registers generated handlers with middleware options instead of global router.Use.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[masaya-osuga]

LGTM