cleanup: remove debug code, align mint URL to testnut-nutshell

- Remove DNS resolve test and unused includes from debug endpoint
- Reduce mint_health probe logging to DEBUG level
- Update default mint URL from testnut.cashu.space to
  testnut-nutshell.mints.orangesync.tech in config.c,
  tollgate_platform.c, .env, AGENTS.md

4 files changed, 4 insertions, 25 deletions

diff --git a/main/config.c b/main/config.c
index 9d0d54c..e3cbf46 100644
--- a/main/config.c
+++ b/main/config.c
@@ -71,8 +71,8 @@ esp_err_t tollgate_config_init(void)
               "{\"ssid\":\"c03rad0r\",\"password\":\"c03rad0r123\"}"
             "],"
             "\"ap_password\":\"\","
-            "\"mint_url\":\"https://testnut.cashu.space\","
-            "\"accepted_mints\":[\"https://testnut.cashu.space\"],"
+            "\"mint_url\":\"https://testnut-nutshell.mints.orangesync.tech\","
+            "\"accepted_mints\":[\"https://testnut-nutshell.mints.orangesync.tech\"],"
             "\"price_per_step\":21,"
             "\"step_size_ms\":60000,"
             "\"nostr_geohash\":\"u281w0dfz\","
diff --git a/main/mint_health.c b/main/mint_health.c
index 26d73a6..a551295 100644
--- a/main/mint_health.c
+++ b/main/mint_health.c
@@ -7,7 +7,6 @@
 #include "freertos/semphr.h"
 #include <string.h>
 #include <stdlib.h>
-#include <errno.h>
 
 static const char *TAG = "mint_health";
 
@@ -64,16 +63,13 @@ static bool probe_mint(const char *url)
     };
     esp_http_client_handle_t client = esp_http_client_init(&config);
     if (!client) {
-        ESP_LOGE(TAG, "probe: init failed for %s", probe_url);
         s_last_probe_err = -1;
         return false;
     }
 
     esp_err_t err = esp_http_client_open(client, 0);
     if (err != ESP_OK) {
-        ESP_LOGE(TAG, "probe: open failed for %s err=0x%x", probe_url, err);
-        int sc = esp_http_client_get_status_code(client);
-        ESP_LOGE(TAG, "probe: status=%d errno=%d(%s)", sc, errno, strerror(errno));
+        ESP_LOGD(TAG, "probe open failed: %s err=0x%x", probe_url, err);
         s_last_probe_err = err;
         esp_http_client_cleanup(client);
         return false;
@@ -81,7 +77,6 @@ static bool probe_mint(const char *url)
 
     int content_length = esp_http_client_fetch_headers(client);
     int status = esp_http_client_get_status_code(client);
-    ESP_LOGI(TAG, "probe: %s -> status=%d len=%d", probe_url, status, content_length);
     s_last_probe_err = 0;
 
     char *resp = NULL;
diff --git a/main/tollgate_api.c b/main/tollgate_api.c
index 5ac0543..80fe6ed 100644
--- a/main/tollgate_api.c
+++ b/main/tollgate_api.c
@@ -6,9 +6,6 @@
 #include "captive_portal.h"
 #include "firewall.h"
 #include "lwip/dns.h"
-#include "lwip/netdb.h"
-#include "esp_http_client.h"
-#include "esp_crt_bundle.h"
 #include "esp_heap_caps.h"
 #include "nucula_wallet.h"
 #include "mint_health.h"
@@ -734,19 +731,6 @@ static esp_err_t api_get_debug(httpd_req_t *req)
     cJSON_AddStringToObject(root, "sta_ip", sta_ip_str);
     cJSON_AddStringToObject(root, "sta_gw", sta_gw_str);
 
-    struct addrinfo hints = {0}, *res = NULL;
-    hints.ai_family = AF_INET;
-    int dns_rc = getaddrinfo("testnut-compat.mints.orangesync.tech", NULL, &hints, &res);
-    if (dns_rc == 0 && res) {
-        struct sockaddr_in *addr = (struct sockaddr_in *)res->ai_addr;
-        char resolved[16];
-        snprintf(resolved, sizeof(resolved), IPSTR, IP2STR(&(esp_ip4_addr_t){.addr=addr->sin_addr.s_addr}));
-        cJSON_AddStringToObject(root, "dns_resolve", resolved);
-    } else {
-        cJSON_AddStringToObject(root, "dns_resolve", dns_rc == 0 ? "no-addr" : "FAIL");
-    }
-    if (res) freeaddrinfo(res);
-
     char *json = cJSON_PrintUnformatted(root);
     httpd_resp_set_type(req, "application/json");
     httpd_resp_sendstr(req, json);
diff --git a/main/tollgate_platform.c b/main/tollgate_platform.c
index 4083c4e..fe8ac2d 100644
--- a/main/tollgate_platform.c
+++ b/main/tollgate_platform.c
@@ -22,7 +22,7 @@ static int32_t platform_get_step_ms(void)
 static const char *platform_get_mint_url(void)
 {
     const tollgate_config_t *cfg = tollgate_config_get();
-    return cfg ? cfg->mint_url : "https://testnut.cashu.space";
+    return cfg ? cfg->mint_url : "https://testnut-nutshell.mints.orangesync.tech";
 }
 
 static const char *platform_get_metric(void)