Add comprehensive documentation for SnapForm extension

- Created development.md for development setup and licensing information.
- Added features.md detailing functionalities and usage instructions for developers and users.
- Introduced index.md to serve as a navigation hub for the documentation.
- Developed outputs.md to explain output formats and their specifications.
- Established service.md to describe the AI Service architecture and environment setup.
- Created surface.md to outline the process of converting Image Empty to perspective meshes.

tests/test_service.py

@@ -45,6 +45,8 @@ class ServiceTest(unittest.TestCase):
         cache.ben2_key = None
         cache.da3_model = None
         cache.da3_key = None
+        cache.moge_model = None
+        cache.moge_key = None
         return cache
 
     def test_ben2_model_is_reused_for_matching_runtime_key(self):
@@ -111,6 +113,39 @@ class ServiceTest(unittest.TestCase):
         self.assertEqual(loads, ["model"])
         self.assertEqual(cache.status()["da3"], "model")
 
+    def test_depth_model_cache_keeps_only_da3_or_moge(self):
+        cache = self.create_cache()
+        cache.ben2_model = object()
+        cache.ben2_key = ("ben2", "cuda")
+        cache.moge_model = object()
+        cache.moge_key = ("moge", "cuda")
+        device = SimpleNamespace(type="cuda")
+        da3 = object()
+
+        def load_da3(_model_dir, _device, key):
+            cache.da3_model = da3
+            cache.da3_key = key
+            return da3
+
+        with patch.object(cache, "_load_da3", side_effect=load_da3):
+            self.assertIs(cache.get_da3("da3", device), da3)
+
+        self.assertIsNone(cache.moge_model)
+        self.assertIsNotNone(cache.ben2_model)
+
+        moge = object()
+
+        def load_moge(_model_dir, _device, key):
+            cache.moge_model = moge
+            cache.moge_key = key
+            return moge
+
+        with patch.object(cache, "_load_moge", side_effect=load_moge):
+            self.assertIs(cache.get_moge("moge", device), moge)
+
+        self.assertIsNone(cache.da3_model)
+        self.assertIsNotNone(cache.ben2_model)
+
     def test_service_tracks_clients_and_rejects_shared_shutdown(self):
         fake_models = SimpleNamespace(
             status=lambda: {"ben2": "", "da3": ""},