feat: Add touch coordinate mapping and RTOS task yielding (#2481)

Co-authored-by: Julia Nguyen <julia@uxj.io>

lib/hal/HalClock.h

@@ -1,15 +1,14 @@
 #pragma once
 
 #include <Arduino.h>
-#include <Wire.h>
-
-#include "HalGPIO.h"
+#include <Rtc.h>
 
 class HalClock;
 extern HalClock halClock;  // Singleton
 
 class HalClock {
   bool _available = false;
+  mutable Rtc _sdkRtc;
   mutable uint8_t _cachedHour = 0;
   mutable uint8_t _cachedMinute = 0;
   mutable bool _hasCachedTime = false;
@@ -18,10 +17,10 @@ class HalClock {
   static constexpr unsigned long CLOCK_POLL_MS = 10000;  // 10 seconds
 
  public:
-  // Call after gpio.begin() and powerManager.begin() (I2C already initialised for X3)
+  // Call after BoardConfig has selected the active device.
   void begin();
 
-  // True if the DS3231 RTC is present on this device
+  // True if an RTC is present on this device
   bool isAvailable() const { return _available; }
 
   // Get current hour (0-23) and minute (0-59).
@@ -35,14 +34,11 @@ class HalClock {
   // Returns false if RTC is not available.
   bool formatTime(char* buf, size_t bufSize, uint8_t utcOffsetQuarterHoursBiased = 48, bool use12Hour = false) const;
 
-  // Sync the DS3231 RTC from an NTP server. Requires WiFi to be connected.
+  // Sync the RTC from an NTP server. Requires WiFi to be connected.
   // Blocks for up to ~5s while waiting for SNTP response.
   // Returns true if the RTC was successfully updated.
   //
   // Debouncing (skip if already synced once) is enforced by the caller, not here,
   // so the HAL stays free of any app-layer settings dependency.
   bool syncFromNTP();
-
- private:
-  bool writeTimeToRTC(uint8_t hour, uint8_t minute, uint8_t second);
 };