Refactor and clean up codebase by removing unused functions and reorganizing imports

- Removed unused model keys and functions from properties.py.
- Deleted projection.py as its functions were no longer needed.
- Cleaned up model_catalog.py by removing unused model directory function.
- Updated imports in various test files to reflect new module structure.
- Removed deprecated test cases related to image editing tools.
- Added new tests for ONNX runtime provider selection logic.

src/anyimage/server/geometry/__init__.py

@@ -1,7 +1 @@
-from .projection import unproject_camera_depth, unproject_depth_frame
-
-
-__all__ = (
-    "unproject_camera_depth",
-    "unproject_depth_frame",
-)
+"""Depth and normal artifact processing."""

src/anyimage/server/geometry/projection.py

@@ -1,31 +0,0 @@
-def unproject_depth_frame(depth, intrinsics, extrinsics):
-    import numpy as np
-
-    height, width = depth.shape
-    x, y = np.meshgrid(
-        np.arange(width, dtype=np.float32),
-        np.arange(height, dtype=np.float32),
-    )
-    pixels = np.stack((x, y, np.ones_like(x)), axis=-1).reshape(-1, 3)
-    rays = (np.linalg.inv(intrinsics) @ pixels.T).T
-    camera_points = rays * depth.reshape(-1, 1)
-    camera_points = np.column_stack(
-        (camera_points, np.ones(camera_points.shape[0], dtype=np.float32))
-    )
-    world_to_camera = np.eye(4, dtype=np.float32)
-    world_to_camera[: extrinsics.shape[0], :4] = extrinsics
-    world_points = (np.linalg.inv(world_to_camera) @ camera_points.T).T
-    return world_points[:, :3].reshape(height, width, 3)
-
-
-def unproject_camera_depth(depth, intrinsics):
-    import numpy as np
-
-    height, width = depth.shape
-    x, y = np.meshgrid(
-        np.arange(width, dtype=np.float32),
-        np.arange(height, dtype=np.float32),
-    )
-    pixels = np.stack((x, y, np.ones_like(x)), axis=-1).reshape(-1, 3)
-    rays = (np.linalg.inv(intrinsics) @ pixels.T).T
-    return (rays * depth.reshape(-1, 1)).reshape(height, width, 3)