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/client_registry.c

@@ -82,6 +82,10 @@ static client_slot_t *alloc_slot(const uint8_t mac[CLIENT_MAC_LEN],
       slot->active = true;
       memcpy(slot->info.mac, mac, CLIENT_MAC_LEN);
       slot->info.accel_deadzone = CLIENT_REGISTRY_DEFAULT_ACCEL_DEADZONE;
+      {
+        static const bma456_tap_config_t k_tap_default = BMA456_TAP_CONFIG_DEFAULT;
+        slot->info.tap_config = k_tap_default;
+      }
       if (out_is_new != NULL) {
         *out_is_new = true;
       }
@@ -246,6 +250,56 @@ size_t client_registry_set_accel_deadzone_all(uint32_t deadzone) {
   return n;
 }
 
+esp_err_t client_registry_set_tap_config(uint32_t client_id,
+                                         const bma456_tap_config_t *cfg) {
+  if (cfg == NULL || !bma456_tap_config_valid(cfg)) {
+    return ESP_ERR_INVALID_ARG;
+  }
+  const client_info_t *info = client_registry_find_by_id(client_id);
+  if (info == NULL) {
+    return ESP_ERR_NOT_FOUND;
+  }
+
+  for (size_t i = 0; i < CLIENT_REGISTRY_MAX; i++) {
+    if (s_clients[i].active && s_clients[i].info.id == client_id) {
+      s_clients[i].info.tap_config = *cfg;
+      return ESP_OK;
+    }
+  }
+  return ESP_ERR_NOT_FOUND;
+}
+
+esp_err_t client_registry_get_tap_config(uint32_t client_id,
+                                         bma456_tap_config_t *cfg_out) {
+  if (cfg_out == NULL) {
+    return ESP_ERR_INVALID_ARG;
+  }
+
+  const client_info_t *info = client_registry_find_by_id(client_id);
+  if (info == NULL) {
+    return ESP_ERR_NOT_FOUND;
+  }
+
+  *cfg_out = info->tap_config;
+  return ESP_OK;
+}
+
+size_t client_registry_set_tap_config_all(const bma456_tap_config_t *cfg) {
+  if (cfg == NULL || !bma456_tap_config_valid(cfg)) {
+    return 0;
+  }
+  size_t n = 0;
+
+  for (size_t i = 0; i < CLIENT_REGISTRY_MAX; i++) {
+    if (!s_clients[i].active) {
+      continue;
+    }
+    s_clients[i].info.tap_config = *cfg;
+    n++;
+  }
+  return n;
+}
+
 static void clear_client_accel(client_slot_t *slot) {
   if (slot == NULL) {
     return;