Add last_check_status to the GET /domains response by aggregating the
most recent result of each checker per domain and reporting the worst
(most critical) status. The frontend domain list now renders a badge
with the check status that links to the domain's checks page.
Replace the UsecaseDependancies interface with plain Dependencies structs
defined locally in each route package. DeclareRoutes acts as the sole
composition root where use cases are resolved; sub-route functions and
controllers receive only the specific interfaces they need.
- Moved usecases into internal/usecase
- Renamed internal/utils to internal/helpers for better naming semantics
- Clarified separation between domain model, usecases, adapters, and web/API
