feat(ops/site-mappings): wire site domain mapping routes and monitoring DB

Register site-domain-mappings CRUD endpoints under the authenticated ops
router, add a monitoring_database config block (falling back to the main
ops database when unset) for the service to share the monitoring pool.

server/internal/ops/transport/router.go

@@ -19,6 +19,7 @@ type Deps struct {
 	Accounts   *app.AccountService
 	AdminUsers *app.AdminUserService
 	Audits     *app.AuditService
+	SiteDomains *app.SiteDomainMappingService
 }
 
 func RegisterRoutes(d Deps) {
@@ -74,5 +75,11 @@ func RegisterRoutes(d Deps) {
 		authed.POST("/admin-users/:id/password", resetAdminUserPasswordHandler(d.AdminUsers))
 
 		authed.GET("/audits", listAuditsHandler(d.Audits))
+
+		authed.GET("/site-domain-mappings", listSiteDomainMappingsHandler(d.SiteDomains))
+		authed.POST("/site-domain-mappings", createSiteDomainMappingHandler(d.SiteDomains))
+		authed.PATCH("/site-domain-mappings/:id", updateSiteDomainMappingHandler(d.SiteDomains))
+		authed.POST("/site-domain-mappings/:id/active", setSiteDomainMappingActiveHandler(d.SiteDomains))
+		authed.DELETE("/site-domain-mappings/:id", deleteSiteDomainMappingHandler(d.SiteDomains))
 	}
 }