New kernel drivers, filesystem API, and more (#513)

* **New Features**
  * BMI270 6-axis IMU driver added; new unified filesystem abstraction for mounted filesystems.
  * Public Wi‑Fi API surface (no implementation yet)
  * SDMMC driver added (kernel drive$)
  * expanded GPIO interrupt/callback support
* **Improvements**
  * M5Stack Tab5: revamped GPIO/power initialization and IMU integration.
  * LVGL updates including device fontSize configuration.
  * Updated all code related to SD card device/fs handling
  * Rename LilyGO T-HMI S3 to LilyGO T-HMI
* **Bug Fixes**
  * Simplified and consolidated SD card handling and mount discovery.

TactilityKernel/source/kernel_symbols.c

@@ -1,3 +1,7 @@
+#include <tactility/concurrent/dispatcher.h>
+#include <tactility/concurrent/event_group.h>
+#include <tactility/concurrent/thread.h>
+#include <tactility/concurrent/timer.h>
 #include <tactility/device.h>
 #include <tactility/driver.h>
 #include <tactility/drivers/gpio_controller.h>
@@ -6,14 +10,14 @@
 #include <tactility/drivers/root.h>
 #include <tactility/drivers/spi_controller.h>
 #include <tactility/drivers/uart_controller.h>
-#include <tactility/concurrent/dispatcher.h>
-#include <tactility/concurrent/event_group.h>
-#include <tactility/concurrent/thread.h>
-#include <tactility/concurrent/timer.h>
 #include <tactility/error.h>
-#include <tactility/log.h>
+#include <tactility/filesystem/file_system.h>
 #include <tactility/module.h>
 
+#ifndef ESP_PLATFORM
+#include <tactility/log.h>
+#endif
+
 /**
  * This file is a C file instead of C++, so we can import all headers as C code.
  * The intent is to catch errors that only show up when compiling as C and not as C++.
@@ -153,6 +157,11 @@ const struct ModuleSymbol KERNEL_SYMBOLS[] = {
     DEFINE_MODULE_SYMBOL(timer_set_callback_priority),
     // error
     DEFINE_MODULE_SYMBOL(error_to_string),
+    // file system
+    DEFINE_MODULE_SYMBOL(file_system_mount),
+    DEFINE_MODULE_SYMBOL(file_system_unmount),
+    DEFINE_MODULE_SYMBOL(file_system_is_mounted),
+    DEFINE_MODULE_SYMBOL(file_system_get_path),
     // log
 #ifndef ESP_PLATFORM
     DEFINE_MODULE_SYMBOL(log_generic),