TactilityKernel improvements (#464)

* **New Features**
  * Thread API with lifecycle, priority, affinity and state monitoring
  * Timer subsystem: one-shot/periodic timers, reset, pending callbacks, expiry queries
  * Expanded I²C: register-level ops, bulk writes, presence checks, ESP32 integration and new config properties
  * GPIO controller: pin level and options APIs
  * Error utilities: new error code, error-to-string, timeout helper and common macros
  * Device construction helpers (construct+start)

* **Tests**
  * New unit tests for thread and timer behavior

* **Documentation**
  * Expanded coding style guide (files/folders, C conventions)

Devices/lilygo-tlora-pager/Source/Configuration.cpp

@@ -38,25 +38,6 @@ static DeviceVector createDevices() {
 extern const Configuration hardwareConfiguration = {
     .initBoot = tpagerInit,
     .createDevices = createDevices,
-    .i2c = {
-        i2c::Configuration {
-            .name = "Internal",
-            .port = I2C_NUM_0,
-            .initMode = i2c::InitMode::ByTactility,
-            .isMutable = false,
-            .config = (i2c_config_t) {
-                .mode = I2C_MODE_MASTER,
-                .sda_io_num = GPIO_NUM_3,
-                .scl_io_num = GPIO_NUM_2,
-                .sda_pullup_en = false,
-                .scl_pullup_en = false,
-                .master = {
-                    .clk_speed = 100'000
-                },
-                .clk_flags = 0
-            }
-        }
-    },
     .spi {spi::Configuration {
         .device = SPI2_HOST,
         .dma = SPI_DMA_CH_AUTO,

Devices/lilygo-tlora-pager/lilygo,tlora-pager.dts

@@ -15,9 +15,9 @@
 
 	i2c0 {
 		compatible = "espressif,esp32-i2c";
-		clock-frequency = <100000>;
-		pin-sda = <&gpio0 3 GPIO_ACTIVE_HIGH>;
-		pin-scl = <&gpio0 2 GPIO_ACTIVE_HIGH>;
 		port = <I2C_NUM_0>;
+		clock-frequency = <100000>;
+		pin-sda = <3>;
+		pin-scl = <2>;
 	};
 };