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)

Platforms/PlatformEsp32/Source/error_esp32.cpp

@@ -11,6 +11,10 @@ error_t esp_err_to_error(esp_err_t error) {
             return ERROR_INVALID_STATE;
         case ESP_ERR_TIMEOUT:
             return ERROR_TIMEOUT;
+        case ESP_ERR_NO_MEM:
+            return ERROR_OUT_OF_MEMORY;
+        case ESP_ERR_NOT_SUPPORTED:
+            return ERROR_NOT_SUPPORTED;
         default:
             return ERROR_UNDEFINED;
     }