fix: call configTime() in minimal WiFi path to initialize DNS resolver

Without configTime(), the ESP32 DNS subsystem isn't properly
initialized after WiFi connect, causing HTTPS hostname resolution
to fail silently in the deep sleep wake path. The fix calls
configTime() fire-and-forget (non-blocking, <1ms) which initializes
DNS without the 5-second NTP wait.

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

src/wifi_manager.cpp

@@ -62,8 +62,10 @@ void WiFiManager::startStation(bool minimal) {
                           WiFi.localIP().toString().c_str(), WiFi.RSSI());
 
             if (minimal) {
-                // Deep sleep wake path: skip NTP/mDNS to minimize active time.
-                // System clock was already seeded from hardware RTC at boot.
+                // Deep sleep wake path: skip blocking NTP wait and mDNS to
+                // minimize active time. Still call configTime() to initialize
+                // the DNS resolver (required for HTTPS hostname resolution).
+                configTime(0, 0, "pool.ntp.org", "time.nist.gov");
                 return;
             }