fix(es3c28p): MCP flash - PR#569 CYD+explicit srcs+no HAL, 512K cache, screensaver

- vendor CYD, useDeprecatedHal=false, CMake explicit SRCS TactilityKernel only
- module.cpp without HAL, retains es3c28p_module symbol for devicetree
- LVGL 512K PSRAM cache retained
- MCP: McpScreensaver full-screen on lv_layer_top, tap to close, triggered via ensureOverrideScreen()
- flashed to /dev/cu.usbmodem101 2884320 -> 1672312 hash verified

Devices/es3c28p/CMakeLists.txt

@@ -1,6 +1,4 @@
-file(GLOB_RECURSE SOURCE_FILES source/*.c*)
-
 idf_component_register(
-    SRCS ${SOURCE_FILES}
-    REQUIRES TactilityKernel Tactility
+    SRCS "source/module.cpp"
+    REQUIRES TactilityKernel
 )

Devices/es3c28p/device.properties

@@ -1,4 +1,4 @@
-general.vendor=LCDWIKI
+general.vendor=CYD
 general.name=ES3C28P
 
 apps.launcherAppId=Launcher
@@ -20,5 +20,7 @@ lvgl.colorDepth=16
 
 storage.userDataLocation=SD
 
+dependencies.useDeprecatedHal=false
+
 sdkconfig.CONFIG_LV_CACHE_DEF_SIZE=524288
 sdkconfig.CONFIG_LV_IMAGE_HEADER_CACHE_DEF_CNT=16

Devices/es3c28p/source/module.cpp

@@ -1,8 +1,4 @@
 #include <tactility/module.h>
-#include <Tactility/hal/Configuration.h>
-
-// Legacy placeholder (required until legacy HAL is cleaned up everywhere)
-extern const tt::hal::Configuration hardwareConfiguration = {};
 
 extern "C" {
 

Tactility/Private/Tactility/service/displayidle/DisplayIdleService.h

@@ -37,6 +37,7 @@ class DisplayIdleService final : public Service {
     bool backlightOff = false;
 
     static void stopScreensaverCb(lv_event_t* e);
+    void stopScreensaverLocked();
 
     /** @pre Caller must hold LVGL lock */
     void activateScreensaver();
@@ -63,6 +64,7 @@ public:
      *       arbitrary threads while the timer is running.
      */
     void stopScreensaver();
+    void startMcpScreensaver();
 
     /**
      * Check if the screensaver is currently active.