Add authenticated WebSocket serial terminal - dirty commit with front-

and backend issues

src/web_server.h

@@ -21,6 +21,8 @@ typedef struct {
     uint64_t authentication_failures;
     uint64_t root_requests;
     uint64_t status_requests;
+    uint64_t ticket_requests;
+    uint64_t asset_requests;
     uint64_t response_errors;
 } web_server_counters_t;
 
@@ -30,6 +32,7 @@ typedef struct {
     bool transitioning;
     uint16_t port;
     esp_err_t last_error;
+    esp_err_t serial_transport_error;
     web_server_counters_t counters;
 } web_server_snapshot_t;