Add runtime BMA456 tap config with NVS persistence and goTool UI.

Expose multitap parameters over UART/ESP-NOW (like deadzone), store per node in NVS, and allow get/set from CLI, REST, and the dashboard without poll-overwrite while editing.

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

main/proto/esp_now_messages.proto

@@ -26,6 +26,7 @@ enum EspNowMessageType {
   ESPNOW_TAP_EVENT = 18;
   ESPNOW_ECHO_PING = 19;
   ESPNOW_ECHO_PONG = 20;
+  ESPNOW_SET_TAP_CONFIG = 21;
 }
 
 message EspNowUnicastTest {
@@ -103,6 +104,20 @@ message EspNowTapNotify {
   bool triple = 4;
 }
 
+/** Master → slave: BMA456H multitap detection parameters. */
+message EspNowTapConfig {
+  uint32 client_id = 1; // 0 = all slaves; otherwise only matching slave_id applies
+  uint32 tap_sens_thres = 2;
+  uint32 max_gest_dur = 3;
+  uint32 tap_shock_dur = 4;
+  uint32 quite_time_after_gest = 5;
+  uint32 wait_for_timeout = 6;
+  uint32 axis_sel = 7;
+  bool enable_single = 8;
+  bool enable_double = 9;
+  bool enable_triple = 10;
+}
+
 /** Slave → master: tap detected on BMA456 (event, not periodic). */
 message EspNowTapEvent {
   uint32 slave_id = 1;
@@ -177,5 +192,6 @@ message EspNowMessage {
     EspNowTapEvent tap_event = 19;
     EspNowEchoPing echo_ping = 20;
     EspNowEchoPong echo_pong = 21;
+    EspNowTapConfig tap_config = 22;
   }
 }