Add ONNX model inference implementations for MoGe-2, BEN2, and DA3

- Introduced `onnx_moge2.py` for MoGe-2 ONNX inference with NumPy post-processing.
- Added `onnx_ben2.py` for BEN2 ONNX inference with Pillow and NumPy preprocessing.
- Created `onnx_da3.py` for Depth Anything 3 inference with ONNX Runtime and NumPy.
- Implemented shared ONNX Runtime session helpers in `onnx_runtime.py`.
- Developed unit tests for server functionalities in `test_server.py`, including model caching and job management.
- Enhanced job server to handle frame extraction without requiring models.

docs/development.md

@@ -15,28 +15,36 @@ uv run python pack.py
 ├── src/
 │   └── snapform/
 │       ├── blender_manifest.toml
-│       ├── install_env.py
-│       ├── models.py
 │       ├── operators.py
 │       ├── panel.py
 │       ├── preferences.py
 │       ├── properties.py
-│       ├── client.py
+│       ├── job_runtime.py
 │       ├── blendjob/
 │       │   ├── client.py
+│       │   ├── controller.py
+│       │   ├── environment.py
+│       │   ├── installer/environment.py
 │       │   ├── operator.py
-│       │   ├── service.py
+│       │   ├── runner.py
+│       │   ├── runtime.py
 │       │   └── server.py
 │       ├── blender/
 │       │   ├── depth_plane.py
 │       │   └── surface.py
-│       └── ai_service/
-│           ├── server.py
+│       └── server/
+│           ├── __init__.py
+│           ├── model_catalog.py
+│           ├── model_download.py
 │           ├── model_manager.py
-│           ├── jobs.py
-│           ├── ben2_onnx.py
-│           ├── da3_onnx.py
-│           ├── moge_onnx.py
+│           ├── media.py
+│           ├── geometry.py
+│           ├── background.py
+│           ├── moge2.py
+│           ├── da3.py
+│           ├── onnx_ben2.py
+│           ├── onnx_da3.py
+│           ├── onnx_moge2.py
 │           └── onnx_runtime.py
 └── tests/
 ```