feat: Implement ONNX model inference for BEN2, Depth Anything 3, and MoGe

- Added `ben2_onnx.py` for BEN2 ONNX inference with preprocessing.
- Introduced `da3_onnx.py` for Depth Anything 3 inference, including camera projection calculations.
- Created `moge_onnx.py` for MoGe-2 ONNX inference and post-processing.
- Implemented shared ONNX Runtime session helpers in `onnx_runtime.py`.
- Added model synchronization script `sync_models.py` for downloading and verifying ONNX models.
- Developed unit tests for BEN2, Depth Anything 3, and MoGe ONNX models to ensure functionality.
- Updated `vendor.lock.toml` to remove unused artifacts.

pack.py

@@ -1,6 +1,4 @@
 import hashlib
-import io
-import tarfile
 import tomllib
 from pathlib import Path
 from zipfile import ZIP_DEFLATED, ZipFile
@@ -10,7 +8,6 @@ PROJECT_ROOT = Path(__file__).resolve().parent
 SOURCE_DIR = PROJECT_ROOT / "src" / "snapform"
 VENDOR_DIR = PROJECT_ROOT / "vendor"
 DIST_DIR = PROJECT_ROOT / "dist"
-PATCHES_DIR = PROJECT_ROOT / "patches"
 LOCK_PATH = PROJECT_ROOT / "vendor.lock.toml"
 
 
@@ -28,15 +25,6 @@ PLATFORMS = {
     platform: artifact["filename"]
     for platform, artifact in VENDOR_LOCK["platforms"].items()
 }
-BUNDLED_ARCHIVES = {
-    f"vendor/{artifact['filename']}": artifact["filename"]
-    for artifact in VENDOR_LOCK["artifacts"].values()
-}
-OVERLAYS = {
-    artifact["filename"]: artifact["patches"]
-    for artifact in VENDOR_LOCK["artifacts"].values()
-    if "patches" in artifact
-}
 
 
 def file_sha256(path):
@@ -63,41 +51,6 @@ def validate_artifact(path, expected_sha256):
         )
 
 
-def bundled_artifact_bytes(filename):
-    """Return a bundled artifact with its configured overlay applied."""
-    archive_path = VENDOR_DIR / filename
-    overlay_dir = PATCHES_DIR / OVERLAYS.get(filename, filename)
-    if not overlay_dir.is_dir():
-        return archive_path.read_bytes()
-    if not filename.endswith(".tar.gz"):
-        raise ValueError(f"Unsupported overlay archive: {filename}")
-    return _apply_tar_overlay(archive_path, overlay_dir)
-
-
-def _apply_tar_overlay(archive_path, overlay_dir):
-    with tarfile.open(archive_path, "r:gz") as source:
-        members = source.getmembers()
-        top_level = members[0].name.split("/", 1)[0]
-        buffer = io.BytesIO()
-        with tarfile.open(fileobj=buffer, mode="w:gz") as output:
-            for member in members:
-                if member.isdir() or member.islnk() or member.issym():
-                    output.addfile(member)
-                    continue
-                relative = member.name[len(top_level) + 1:]
-                overlay_file = overlay_dir / relative
-                if overlay_file.is_file():
-                    info = tarfile.TarInfo(member.name)
-                    info.size = overlay_file.stat().st_size
-                    info.mode = member.mode
-                    with overlay_file.open("rb") as overlay_stream:
-                        output.addfile(info, overlay_stream)
-                else:
-                    with source.extractfile(member) as extracted:
-                        output.addfile(member, extracted)
-    return buffer.getvalue()
-
-
 def manifest_for_platform(platform):
     """Return the manifest text declaring only the given platform."""
     text = (SOURCE_DIR / "blender_manifest.toml").read_text(encoding="utf-8")
@@ -121,23 +74,13 @@ def manifest_for_platform(platform):
 
 
 def bundled_vendor_files(platform):
-    entries = {
-        name: VENDOR_DIR / filename
-        for name, filename in BUNDLED_ARCHIVES.items()
+    return {
+        f"vendor/{PLATFORMS[platform]}": VENDOR_DIR / PLATFORMS[platform]
     }
-    entries[f"vendor/{PLATFORMS[platform]}"] = (
-        VENDOR_DIR / PLATFORMS[platform]
-    )
-    return entries
 
 
 def validate_vendor_files(platform):
     """Validate common archives and the selected uv archive."""
-    for artifact in VENDOR_LOCK["artifacts"].values():
-        validate_artifact(
-            VENDOR_DIR / artifact["filename"],
-            artifact["sha256"],
-        )
     uv_artifact = VENDOR_LOCK["platforms"][platform]
     validate_artifact(
         VENDOR_DIR / uv_artifact["filename"],
@@ -174,7 +117,7 @@ def build_extension(platform):
         for archive_name, source_path in vendor_files.items():
             archive.writestr(
                 archive_name,
-                bundled_artifact_bytes(source_path.name),
+                source_path.read_bytes(),
             )
     return output_path