fix(store,api): идемпотентный import (UNIQUE+ON CONFLICT) + PATCH привязки шаблона к домену

internal/api/api.go

@@ -40,6 +40,7 @@ type TenantStore interface {
 	ListDomains(ctx context.Context, projectID uuid.UUID) ([]store.Domain, error)
 	DeleteDomain(ctx context.Context, id, projectID uuid.UUID) error
 	ImportDomains(ctx context.Context, projectID, accountID uuid.UUID, zones []provider.Zone) ([]store.Domain, error)
+	SetDomainTemplate(ctx context.Context, domainID, projectID uuid.UUID, templateID *uuid.UUID) (store.Domain, error)
 }
 
 // Cipher encrypts/decrypts provider account secrets. *crypto.Cipher satisfies it.
@@ -73,6 +74,7 @@ func NewRouter(a *API) http.Handler {
 			r.Route("/{did}", func(r chi.Router) {
 				r.Get("/check", a.handleCheck)
 				r.Post("/apply", a.handleApply)
+				r.Patch("/", a.handleSetDomainTemplate)
 				r.Delete("/", a.handleDeleteDomain)
 			})
 		})