[Bug] Windows: ragfs_python DLL load failed in v0.3.6

[zhaowenbing]

Environment

• OS: Windows
• Python: 3.14
• OpenViking: 0.3.6

Problem

After upgrading to v0.3.6, openviking-server fails to start with the following error:

ImportError: ragfs_python native library is not available: Rust binding not available

The file ragfs_python.cp310-win_amd64.pyd exists in site-packages/openviking/lib/ but cannot be loaded, likely due to missing DLL dependencies.

Rolling back to v0.3.3 works correctly.

Cause

Appears related to the agfs to ragfs rewrite (PR #1221, Issue #1271), which changed how the Rust binding library is built and loaded. The Windows pre-built binary may be missing runtime dependencies.

Expected

v0.3.6 should start and run normally on Windows, just like v0.3.3.

[l2002924700]

Ubuntu有同样的问题，也是缺失ragfs_python 安装包：

CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1010). Falling back to local backup.
Traceback (most recent call last):
File "/lib/python3.12/site-packages/openviking/pyagfs/init.py", line 64, in _load_rust_binding
from ragfs_python import RAGFSBindingClient as _Rust
ModuleNotFoundError: No module named 'ragfs_python'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/lib/python3.12/site-packages/openviking/pyagfs/init.py", line 78, in get_binding_client
client, fh = _load_rust_binding()
^^^^^^^^^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/pyagfs/init.py", line 68, in _load_rust_binding
raise ImportError("Rust binding not available")
ImportError: Rust binding not available

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/amsr/linchao/autogen/autogen_memory/test_openviking/test_session_color.py", line 13, in
client = ov.OpenViking(path="./color_data")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/sync_client.py", line 26, in init
self._async_client = AsyncOpenViking(**kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/async_client.py", line 67, in init
self._client: BaseClient = LocalClient(
^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/client/local.py", line 49, in init
self._service = OpenVikingService(
^^^^^^^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/service/core.py", line 96, in init
self._init_storage(
File "/lib/python3.12/site-packages/openviking/service/core.py", line 116, in _init_storage
self._agfs_client = create_agfs_client(config.agfs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/utils/agfs_utils.py", line 94, in create_agfs_client
RAGFSBindingClient, _ = get_binding_client()
^^^^^^^^^^^^^^^^^^^^
File "/lib/python3.12/site-packages/openviking/pyagfs/init.py", line 82, in get_binding_client
raise ImportError("ragfs_python native library is not available: " + str(exc)) from exc
ImportError: ragfs_python native library is not available: Rust binding not available