mod: fix clock bugs, add NTP auto-sync, show clock in all headers

- Fix SetTimeActivity immediately dismissing by changing wasReleased to
  wasPressed for all button inputs (matching other subactivities)
- Extract NTP sync into shared TimeSync utility (startNtpSync,
  waitForNtpSync, stopNtpSync) and trigger non-blocking NTP sync on
  every WiFi connection
- Move clock rendering into drawHeader (BaseTheme + LyraTheme) so it
  appears on all screens with a header, positioned symmetrically with
  the battery icon (12px margin, same Y offset, SMALL_FONT_ID)
- Add per-minute auto-refresh on home screen so clock updates without
  button press
- Add RTC time debug log on boot to verify time persistence across
  deep sleep

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

src/util/TimeSync.cpp

@@ -0,0 +1,50 @@
+#include "TimeSync.h"
+
+#include <Logging.h>
+#include <esp_sntp.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+
+namespace TimeSync {
+
+void startNtpSync() {
+  if (esp_sntp_enabled()) {
+    esp_sntp_stop();
+  }
+
+  esp_sntp_setoperatingmode(ESP_SNTP_OPMODE_POLL);
+  esp_sntp_setservername(0, "pool.ntp.org");
+  esp_sntp_init();
+
+  LOG_DBG("NTP", "SNTP service started");
+}
+
+bool waitForNtpSync(int timeoutMs) {
+  startNtpSync();
+
+  const int intervalMs = 100;
+  const int maxRetries = timeoutMs / intervalMs;
+  int retry = 0;
+
+  while (sntp_get_sync_status() != SNTP_SYNC_STATUS_COMPLETED && retry < maxRetries) {
+    vTaskDelay(intervalMs / portTICK_PERIOD_MS);
+    retry++;
+  }
+
+  if (retry < maxRetries) {
+    LOG_DBG("NTP", "Time synced after %d ms", retry * intervalMs);
+    return true;
+  }
+
+  LOG_DBG("NTP", "Sync timeout after %d ms", timeoutMs);
+  return false;
+}
+
+void stopNtpSync() {
+  if (esp_sntp_enabled()) {
+    esp_sntp_stop();
+    LOG_DBG("NTP", "SNTP service stopped");
+  }
+}
+
+}  // namespace TimeSync

src/util/TimeSync.h

@@ -0,0 +1,17 @@
+#pragma once
+
+namespace TimeSync {
+
+// Start NTP time synchronization (non-blocking).
+// Configures and starts the SNTP service; time will be updated
+// automatically when the NTP response arrives.
+void startNtpSync();
+
+// Start NTP sync and block until complete or timeout.
+// Returns true if time was synced, false on timeout.
+bool waitForNtpSync(int timeoutMs = 5000);
+
+// Stop the SNTP service. Call before disconnecting WiFi.
+void stopNtpSync();
+
+}  // namespace TimeSync