Update OpenAPI schema

[dotto-api-schema-updater]

This PR updates the OpenAPI schema from dotto-typespec.

Triggered by: fun-dotto/dotto-typespec@50b5e77

[Copilot]

Pull request overview

This PR syncs the repository’s OpenAPI spec with the upstream dotto-typespec output, and updates the Go handlers + generated types to correctly return HTTP 404 for “announcement not found” cases.

Changes:

• Added 404 responses to the OpenAPI paths for announcement detail, update, and delete.
• Updated handlers to map domain.ErrNotFound to explicit *404Response{} return types (instead of returning the error).
• Added handler tests asserting 404 behavior for detail/update/delete when the repository returns domain.ErrNotFound.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
openapi/openapi.yaml	Adds 404 responses for /v1/announcements/{id} operations to match updated schema.
internal/handler/get_announcement_v1.go	Returns AnnouncementsV1Detail404Response{} when service returns domain.ErrNotFound.
internal/handler/update_announcement.go	Returns AnnouncementsV1Update404Response{} when service returns domain.ErrNotFound.
internal/handler/delete_announcement.go	Returns AnnouncementsV1Delete404Response{} when service returns domain.ErrNotFound.
internal/handler/announcement_test.go	Adds tests validating 404 status codes for not-found scenarios.
generated/api.gen.go	Includes newly generated 404 response types and visitor methods that write status 404.

---

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