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_manifest.py

@@ -0,0 +1,25 @@
+import tomllib
+import unittest
+from pathlib import Path
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+MANIFEST_PATH = PROJECT_ROOT / "src" / "omoo_da3" / "blender_manifest.toml"
+
+
+class ManifestTest(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.manifest = tomllib.loads(MANIFEST_PATH.read_text(encoding="utf-8"))
+
+    def test_declares_modern_extension_metadata(self):
+        self.assertEqual(self.manifest["schema_version"], "1.0.0")
+        self.assertEqual(self.manifest["id"], "omoo_da3")
+        self.assertEqual(self.manifest["type"], "add-on")
+        self.assertNotIn("bl_info", self.manifest)
+
+    def test_declares_required_runtime_permissions(self):
+        self.assertEqual(
+            set(self.manifest["permissions"]),
+            {"network", "files"},
+        )