Implement Omoo DA3 functionality with property group, runtime, worker, and status bar

- Added properties for Omoo DA3 settings in properties.py, including input path, video frames, model selection, and export format.
- Created runtime management in runtime.py, handling model downloads, job paths, and command execution for reconstruction.
- Developed status bar functionality in status_bar.py to display job progress and status.
- Implemented worker.py for image and video processing, including frame extraction and model inference.
- Added comprehensive unit tests covering addon registration, model handling, export processes, and UI interactions.
- Included a lock file for dependency management with uv.

tests/test_pack.py

@@ -0,0 +1,39 @@
+import importlib.util
+import tempfile
+import unittest
+from pathlib import Path
+from zipfile import ZipFile
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+
+
+def load_pack():
+    specification = importlib.util.spec_from_file_location(
+        "omoo_da3_pack",
+        PROJECT_ROOT / "pack.py",
+    )
+    module = importlib.util.module_from_spec(specification)
+    specification.loader.exec_module(module)
+    return module
+
+
+class PackTest(unittest.TestCase):
+    def test_builds_extension_root_layout(self):
+        pack = load_pack()
+        with tempfile.TemporaryDirectory() as directory:
+            original_dist = pack.DIST_DIR
+            pack.DIST_DIR = Path(directory)
+            try:
+                output_path = pack.build_extension()
+            finally:
+                pack.DIST_DIR = original_dist
+
+            with ZipFile(output_path) as archive:
+                names = set(archive.namelist())
+
+        self.assertIn("__init__.py", names)
+        self.assertIn("blender_manifest.toml", names)
+        self.assertIn("worker.py", names)
+        self.assertNotIn("importer.py", names)
+        self.assertNotIn("omoo_da3/__init__.py", names)