feat(resource): 支持飞书用户 token 导入

[qin-ctx]

Description

本 PR 为 add_resource 增加通用 args 透传能力，并在飞书/Lark 文档导入中支持通过 args.feishu_access_token 进行一次性用户 token 导入。默认 app_id/app_secret 自动获取 tenant token 的行为保持不变。

Related Issue

无

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement
• Test update

Changes Made

• 为 REST、MCP、Python SDK、HTTP client、本地 client 和 Rust CLI 的 add_resource 增加 args 参数透传。
• 在 ResourceService 中统一校验 parser-specific args，拒绝核心 add_resource 字段覆盖，并限制 feishu_access_token 只能用于一次性导入，不能与 watch_interval > 0 组合。
• 更新 FeishuAccessor，在传入 feishu_access_token 时使用 Lark SDK RequestOption.user_access_token 访问 wiki/docx API，同时保持默认应用凭证 tenant token 流程不变。
• 补充中英文资源 API/MCP 文档和相关单元测试。

Testing

• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have tested this on the following platforms:
  • Linux
  • macOS
  • Windows

测试命令：

.venv/bin/ruff check openviking/service/resource_service.py openviking/server/routers/resources.py openviking/server/mcp_endpoint.py openviking/parse/accessors/feishu_accessor.py openviking_cli/client/base.py openviking_cli/client/http.py openviking_cli/client/sync_http.py openviking/async_client.py openviking/sync_client.py openviking/client/local.py tests/service/test_resource_service_watch.py tests/parse/test_feishu_accessor.py tests/client/test_http_client_local_upload.py tests/server/test_api_resources.py
.venv/bin/python -m pytest --no-cov tests/parse/test_feishu_accessor.py tests/service/test_resource_service_watch.py::TestAddResourceArgs tests/client/test_http_client_local_upload.py::test_add_resource_forwards_args_for_remote_url tests/server/test_api_resources.py::test_add_resource_forwards_args_to_service -q
cargo test -p ov_cli add_resource

Checklist

• My code follows the project's coding style
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published

Screenshots (if applicable)

不适用

Additional Notes

本期不保存、不刷新 Feishu 用户 token；因此通过 args.feishu_access_token 导入时会拒绝 watch。后续如需定时更新，需要另行设计由上层应用管理 token 生命周期的方案。

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