refactor(package): rename to dm_imu and restructure directories

Renamed package from dm_imu_pkg to dm_imu across PKG-INFO, egg-info files,
and directories. Updated CMakeLists.txt, __init__.py, and top_level.txt to
reflect new structure. Bumped gradio version from <5.0 to <6.0 in
dependencies. This refactoring improves naming consistency and streamlines
the package layout for better maintainability.

dm_imu/pybind_imu.cpp

@@ -0,0 +1,36 @@
+#include <pybind11/pybind11.h>
+#include <pybind11/stl.h>
+#include "imu_driver.h"
+
+namespace py = pybind11;
+using namespace dmbot_serial;
+
+/* Convert IMU_Data to a Python dict */
+py::dict imu_data_to_dict(const IMU_Data &data) {
+    py::dict d;
+    d["accx"]   = data.accx;
+    d["accy"]   = data.accy;
+    d["accz"]   = data.accz;
+    d["gyrox"]  = data.gyrox;
+    d["gyroy"]  = data.gyroy;
+    d["gyroz"]  = data.gyroz;
+    d["roll"]   = data.roll;
+    d["pitch"]  = data.pitch;
+    d["yaw"]    = data.yaw;
+    return d;
+}
+
+PYBIND11_MODULE(imu_py, m) {
+    m.doc() = "Python bindings for DM‑IMU driver";
+
+    py::class_<DmImu>(m, "DmImu")
+        .def(py::init<const std::string&, int>(),
+             py::arg("port") = "/dev/ttyACM1",
+             py::arg("baud") = 921600)
+        .def("start", &DmImu::start)
+        .def("stop",  &DmImu::stop)
+        .def("getData",
+             [](const DmImu &self) {
+                 return imu_data_to_dict(self.getData());
+             });
+}