Assign sequential pod IDs from the master with NVS-stable bindings.

Replaces MAC-byte self-IDs with master allocation (1–255), slave preferred-ID reconnect, debug reset via UART/UI, and rate-limited ASSIGN to avoid ESP-NOW NO_MEM storms.

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

goTool/api_serve.go

@@ -64,6 +64,11 @@ type findMeAPIResponse struct {
 	Error    string `json:"error,omitempty"`
 }
 
+type resetIdMapAPIResponse struct {
+	Success bool   `json:"success"`
+	Error   string `json:"error,omitempty"`
+}
+
 type restartAPIRequest struct {
 	ClientID uint32 `json:"client_id"`
 }
@@ -139,6 +144,9 @@ func mountServeAPI(mux *http.ServeMux, link *managedSerial, hub *wsHub, streamCt
 		}
 		serveRestart(w, r, link)
 	})
+	mux.HandleFunc("POST /api/clients/reset-id-map", func(w http.ResponseWriter, r *http.Request) {
+		serveResetClientIdMap(w, r, link)
+	})
 	mux.HandleFunc("/api/log-level", func(w http.ResponseWriter, r *http.Request) {
 		switch r.Method {
 		case http.MethodGet:
@@ -361,6 +369,23 @@ func serveRestart(w http.ResponseWriter, r *http.Request, link *managedSerial) {
 	writeJSON(w, http.StatusOK, restartAPIResponse{Success: true, ClientID: body.ClientID})
 }
 
+func serveResetClientIdMap(w http.ResponseWriter, r *http.Request, link *managedSerial) {
+	if !link.IsConnected() {
+		writeJSON(w, http.StatusServiceUnavailable, resetIdMapAPIResponse{Error: "host not connected"})
+		return
+	}
+	resp, err := link.resetClientIdMap()
+	if err != nil {
+		writeJSON(w, http.StatusServiceUnavailable, resetIdMapAPIResponse{Error: err.Error()})
+		return
+	}
+	if !resp.GetSuccess() {
+		writeJSON(w, http.StatusOK, resetIdMapAPIResponse{Success: false, Error: "rejected by device"})
+		return
+	}
+	writeJSON(w, http.StatusOK, resetIdMapAPIResponse{Success: true})
+}
+
 func serveFindMe(w http.ResponseWriter, r *http.Request, link *managedSerial) {
 	var body findMeAPIRequest
 	if err := json.NewDecoder(r.Body).Decode(&body); err != nil {