http: /settings/notifications CRUD + test endpoint

internal/server/http/server.go

@@ -15,6 +15,7 @@ import (
 
 	"gitea.dcglab.co.uk/steve/restic-manager/internal/alert"
 	"gitea.dcglab.co.uk/steve/restic-manager/internal/crypto"
+	"gitea.dcglab.co.uk/steve/restic-manager/internal/notification"
 	"gitea.dcglab.co.uk/steve/restic-manager/internal/server/config"
 	"gitea.dcglab.co.uk/steve/restic-manager/internal/server/ui"
 	"gitea.dcglab.co.uk/steve/restic-manager/internal/server/ws"
@@ -34,6 +35,9 @@ type Deps struct {
 	// host-online events from the WS handler. Nil until G1 constructs
 	// the engine at boot.
 	AlertEngine *alert.Engine
+	// NotificationHub (optional, wired in G1) is used by the test-fire
+	// endpoint to dispatch a single synthetic payload through a channel.
+	NotificationHub *notification.Hub
 	// Version is the binary's build version, surfaced in the chrome.
 	// Empty falls back to "dev".
 	Version string
@@ -202,6 +206,10 @@ func (s *Server) routes(r chi.Router) {
 
 		// Alert list (JSON variant). Same filter shape as the UI page.
 		r.Get("/alerts", s.handleAPIAlerts)
+
+		// Notification channel test-fire. Dispatches a synthetic payload
+		// through a single named channel; returns JSON result.
+		r.Post("/notifications/{id}/test", s.handleAPINotificationTest)
 	})
 
 	// HTMX form variant of diff (mounted outside /api so HTMX forms
@@ -309,6 +317,14 @@ func (s *Server) routes(r chi.Router) {
 		r.Get("/alerts", s.handleUIAlerts)
 		r.Post("/alerts/{id}/acknowledge", s.handleUIAlertAcknowledge)
 		r.Post("/alerts/{id}/resolve", s.handleUIAlertResolve)
+		// Settings shell + Notifications sub-tab CRUD.
+		r.Get("/settings", s.handleUISettings)
+		r.Get("/settings/notifications", s.handleUINotificationsList)
+		r.Get("/settings/notifications/new", s.handleUINotificationNewGet)
+		r.Post("/settings/notifications/new", s.handleUINotificationNewPost)
+		r.Get("/settings/notifications/{id}/edit", s.handleUINotificationEditGet)
+		r.Post("/settings/notifications/{id}/edit", s.handleUINotificationEditPost)
+		r.Post("/settings/notifications/{id}/delete", s.handleUINotificationDelete)
 	}
 
 	// Browser job-log stream (separate from /ws/agent so the auth