fix(calendar): nest routes under /channels for correct URL matching

cmd/server/main.go

@@ -243,6 +243,11 @@ func main() {
 				notification.NewHandler(database.DB, logger).RegisterRoutes(r)
 			})
 
+			// Calendar events (top-level so frontend can reach /channels/{id}/events)
+			r.Route("/channels", func(r chi.Router) {
+				channel.NewHandler(database.DB, permissionsChecker).RegisterCalendarRoutes(r)
+			})
+
 			// Push notifications
 			pushHandler.RegisterRoutes(r)
 

internal/channel/calendar.go

@@ -39,7 +39,7 @@ type createEventRequest struct {
 	Color          *string `json:"color"`
 }
 
-func (h *Handler) registerCalendarRoutes(r chi.Router) {
+func (h *Handler) RegisterCalendarRoutes(r chi.Router) {
 	r.Get("/{channelID}/events", h.ListEvents)
 	r.Post("/{channelID}/events", h.CreateEvent)
 	r.Patch("/events/{eventID}", h.UpdateEvent)

internal/channel/handlers.go

@@ -31,7 +31,7 @@ func (h *Handler) RegisterRoutes(r chi.Router) {
 	r.Get("/{channelID}/threads", h.ListThreads)
 	r.Patch("/threads/{threadID}", h.UpdateThread)
 	h.registerForumRoutes(r)
-	h.registerCalendarRoutes(r)
+	h.RegisterCalendarRoutes(r)
 	h.registerDocRoutes(r)
 	h.registerListRoutes(r)
 	h.registerOverrideRoutes(r)