Kernel improvements (#485)

* **New Features**
  * Added public accessors for querying module/device start and ready state.

* **Refactor**
  * Internal state moved to opaque internal objects; module/device/driver initializers now explicitly initialize internal pointers.
  * Lifecycle handling updated to construct/destruct internal state and use accessors.

* **Tests**
  * Tests updated to use public accessors and explicit construct/destruct lifecycle calls.

* **Chores**
  * Test build/include paths and small metadata updated.

Tests/TactilityFreeRtos/Source/DispatcherThreadTest.cpp

@@ -0,0 +1,28 @@
+#include "doctest.h"
+#include <Tactility/DispatcherThread.h>
+
+using namespace tt;
+
+TEST_CASE("DispatcherThread state test") {
+    DispatcherThread thread("test");
+    CHECK_EQ(thread.isStarted(), false);
+
+    thread.start();
+    CHECK_EQ(thread.isStarted(), true);
+
+    thread.stop();
+    CHECK_EQ(thread.isStarted(), false);
+}
+
+TEST_CASE("DispatcherThread should consume jobs") {
+    DispatcherThread thread("test");
+    thread.start();
+    int counter = 0;
+
+    thread.dispatch([&counter]() { counter++; });
+
+    tt::kernel::delayTicks(10);
+
+    CHECK_EQ(counter, 1);
+    thread.stop();
+}