[Bug]: Windows 11 部署出现: OSError WinError 11 in process_lock._is_pid_alive breaks server startup

### Bug Description

## 环境
- OS: Windows 11
- Python: 3.12.4
- openviking 包版本: 0.2.9 （`pip show openviking`）

## 现象
启动 `openviking-server` 时，在应用 lifespan 初始化阶段失败，进程退出。

## 堆栈摘要
`openviking.utils.process_lock.acquire_data_dir_lock` → `_is_pid_alive` → `os.kill(pid, 0)`  
抛出：`OSError: [WinError 11] 试图加载格式不正确的程序。`（或英文等价信息）

## 复现步骤
1. 在 `data` 目录存在 `.openviking.pid`，且其中 PID 在 Windows 上对 `os.kill(pid, 0)` 会触发上述 OSError（或先按正常流程留下锁文件后异常退出）。
2. 执行：`openviking-server --config ov.conf`
3. 观察到 Application startup failed。

## 期望行为
`_is_pid_alive` 在 PID 无效或平台行为异常时，应视为进程不存在，允许覆盖陈旧锁文件，而不是未捕获异常导致整个服务无法启动。

## 可能原因（供参考）
`_is_pid_alive` 仅捕获 `ProcessLookupError` / `PermissionError`，Windows 上部分情况下 `os.kill(pid, 0)` 会抛出更泛化的 `OSError`（如 WinError 11），未被处理。

## 建议修复（可选）
在 `_is_pid_alive` 中在保留现有异常顺序的前提下，增加对 `OSError` 的处理并返回 `False`（或等价逻辑），并注意 `PermissionError` 仍为 `OSError` 子类，处理顺序需先处理 `PermissionError`。

## 附加信息
- 删除 `.openviking.pid` 后有时可临时恢复启动，但根因仍是 PID 探测在 Windows 上的异常类型。
## 错误信息
`(base) PS C:\Users\san_b\.openclaw\.openviking> openviking-server --config ov.conf
Loading config file: ov.conf
2026-03-21 16:22:09,467 - openviking.server.app - INFO - Bot API proxy disabled (use --with-bot to enable)
OpenViking HTTP Server is running on [127.0.0.1:1933](http://127.0.0.1:1933/)
2026-03-21 16:22:09,546 - uvicorn.error - INFO - Started server process [29504]
2026-03-21 16:22:09,546 - uvicorn.error - INFO - Waiting for application startup.
2026-03-21 16:22:09,553 - openviking.utils.agfs_utils - INFO - [AGFSUtils] Created AGFSBindingClient (lib_path=C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\openviking\lib\libagfsbinding.dll)
time="2026-03-21T16:22:09+08:00" level=info msg="mounted serverinfofs at /serverinfo"
time="2026-03-21T16:22:09+08:00" level=info msg="[queuefs] SQLite backend initialized"
time="2026-03-21T16:22:09+08:00" level=info msg="[queuefs] Initialized with backend: sqlite"
time="2026-03-21T16:22:09+08:00" level=info msg="mounted queuefs at /queue"
time="2026-03-21T16:22:09+08:00" level=info msg="[localfs] Initialized with base path: C:\\Users\\san_b\\.openclaw\\.openviking\\data\\viking"
time="2026-03-21T16:22:09+08:00" level=info msg="mounted localfs at /local"
2026-03-21 16:22:09,573 - openviking.storage.queuefs.queue_manager - INFO - [QueueManager] Initialized with agfs=AGFSBindingClient, mount_point=/queue
2026-03-21 16:22:09,573 - openviking.storage.viking_vector_index_backend - INFO - VikingVectorIndexBackend facade initialized
2026-03-21 16:22:09,735 - openviking.storage.queuefs.queue_manager - INFO - Embedding queue initialized with TextEmbeddingHandler
2026-03-21 16:22:09,735 - openviking.storage.queuefs.queue_manager - INFO - Semantic queue initialized with SemanticProcessor
2026-03-21 16:22:09,882 - openviking.service.core - INFO - Initialized embedder (dim 1024, sparse False)
2026-03-21 16:22:09,887 - uvicorn.error - ERROR - Traceback (most recent call last):
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\starlette\routing.py", line 694, in lifespan
    async with self.lifespan_context(app) as maybe_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\fastapi\routing.py", line 212, in merged_lifespan
    async with original_context(app) as maybe_original_state:
  File "C:\Users\san_b\AppData\Local\Programs\Python\Python312\Lib\contextlib.py", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\openviking\server\app.py", line 65, in lifespan
    await service.initialize()
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\openviking\service\core.py", line 237, in initialize
    acquire_data_dir_lock(self._config.storage.workspace)
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\openviking\utils\process_lock.py", line 59, in acquire_data_dir_lock
    if existing_pid and existing_pid != my_pid and _is_pid_alive(existing_pid):
                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\san_b\AppData\Roaming\Python\Python312\site-packages\openviking\utils\process_lock.py", line 38, in _is_pid_alive
    os.kill(pid, 0)
OSError: [WinError 11] 试图加载格式不正确的程序。

2026-03-21 16:22:09,887 - uvicorn.error - ERROR - Application startup failed. Exiting.
(base) PS C:\Users\san_b\.openclaw\.openviking>
`
## 修复代码

![Image](https://github.com/user-attachments/assets/e6d6eeae-4d5d-43b8-a94f-c45331a15d8f)

### Steps to Reproduce

null

### Expected Behavior

null

### Actual Behavior

null

### Minimal Reproducible Example

```python

```

### Error Logs

```shell

```

### OpenViking Version

0.2.9

### Python Version

Python: 3.12.4

### Operating System

Windows

### Model Backend

None

### Additional Context

_No response_

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[Bug]: Windows 11 部署出现: OSError WinError 11 in process_lock._is_pid_alive breaks server startup #842

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[Bug]: Windows 11 部署出现: OSError WinError 11 in process_lock._is_pid_alive breaks server startup #842

Description

Bug Description

环境

现象

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复现步骤

期望行为

可能原因（供参考）

建议修复（可选）

附加信息

错误信息

修复代码

Steps to Reproduce

Expected Behavior

Actual Behavior

Minimal Reproducible Example

Error Logs

OpenViking Version

Python Version

Operating System

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Metadata

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