Web: keep httpd warnings out of the log

httpd_txrx warned on every client reset (errno 104) and httpd_uri on
every 404 (the UI polls /api/player every 2 s until step 7), flooding
syslog. Both set to error level; our handlers log the 4xx that matter.
Remaining known line: 'httpd_resp_send_err: error calling setsockopt :
22' (error level) when a client closes right after a 4xx; a harmless
race in IDF's CONFIG_HTTPD_ERR_RESP_NO_DELAY handling, the response is
already delivered.
Verified via syslog: 10 status + 10 /api/player requests, no httpd lines.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

components/aes67_web/aes67_web.c

@@ -104,6 +104,11 @@ esp_err_t aes67_web_start(void)
         return err;
     }
 
+    // httpd warns on every client reset (errno 104) and every 404 (e.g. UI polling a route the
+    // firmware doesn't have yet): noise in syslog. Our handlers log the 4xx cases that matter.
+    esp_log_level_set("httpd_txrx", ESP_LOG_ERROR);
+    esp_log_level_set("httpd_uri", ESP_LOG_ERROR);
+
     httpd_config_t cfg = HTTPD_DEFAULT_CONFIG();
     cfg.max_uri_handlers = MAX_URIS;
     cfg.stack_size = 8192;