Unify cache polling on CACHE_STATUS and split API docs.

Replace separate accel/tap snapshot UART commands with one clients[] response
that omits unsubscribed fields; remove snapshot handlers and CLI commands.
Add goTool/docs for WebSocket streams and REST; tap-snapshot REST uses CACHE_STATUS.

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

main/cmd/cmd_handler.c

@@ -48,16 +48,12 @@ static const char *message_type_name(uint16_t id) {
     return "FIND_ME";
   case alox_MessageType_RESTART:
     return "RESTART";
-  case alox_MessageType_ACCEL_SNAPSHOT:
-    return "ACCEL_SNAPSHOT";
   case alox_MessageType_ACCEL_STREAM:
     return "ACCEL_STREAM";
   case alox_MessageType_BATTERY_STATUS:
     return "BATTERY_STATUS";
   case alox_MessageType_TAP_NOTIFY:
     return "TAP_NOTIFY";
-  case alox_MessageType_TAP_SNAPSHOT:
-    return "TAP_SNAPSHOT";
   case alox_MessageType_CACHE_STATUS:
     return "CACHE_STATUS";
   default: