Add BMA456 tap detection with ESP-NOW notify and host snapshot API.

Slaves forward configured tap kinds to the master; goTool exposes CLI, dashboard, REST, and WebSocket with separate notify vs receive and 2s display cache.

Co-authored-by: Cursor <cursoragent@cursor.com>

goTool/api_serve.go

@@ -67,8 +67,9 @@ type otaAPIResponse struct {
 	Error         string `json:"error,omitempty"`
 }
 
-func mountServeAPI(mux *http.ServeMux, link *managedSerial, hub *wsHub, streamCtl *accelStreamCtl) {
+func mountServeAPI(mux *http.ServeMux, link *managedSerial, hub *wsHub, streamCtl *accelStreamCtl, tapCtl *tapNotifyCtl) {
 	mountAccelStreamAPI(mux, link, hub, streamCtl)
+	mountTapAPI(mux, link, hub, tapCtl)
 	mountLedRingAPI(mux, link)
 	mountBatteryAPI(mux, link)
 	mux.HandleFunc("/api/deadzone", func(w http.ResponseWriter, r *http.Request) {