feat: connect local Obsidian vaults to conversations

Users can now read, search, and update existing local Obsidian notes through
built-in tools without configuring an external MCP server or Obsidian plugin.
Add vault discovery, an optional folder scope, and independent test, save,
enablement, and runtime assignment controls in MCP settings.

Bundle MCPVault 0.16.0 and its runtime dependencies, exposing 19 shared tools
to direct models and managed local OpenCode and Continue conversations.
Obsidian is disabled by default. Ask remains read-only; Execute permits
writes. Scope and assignment changes revoke existing Obsidian grants.
DeepSeek Harness and remote execution remain unsupported.

Validate the isolated staged snapshot with its own dependency installation:
typecheck, lint, production build, and 540 tests across 14 files passed.
No paid model calls were repeated. Physical-offline, installer, and other
platform acceptance remain pending as documented in the feature record.

Release note: Connect local Obsidian vaults in MCP settings to find notes and
write conversation results back to them. Test all registered vaults or a
chosen folder before enabling access; no Obsidian plugin is required.

BUILD.md

@@ -103,6 +103,13 @@ npm run build
 
 中间构建输出位于 `out`。该目录为生成内容，应修改源文件后重新构建，不要直接编辑。
 
+Obsidian 接入的构建钩子将锁定的 npm `@bitbonsai/mcpvault@0.16.0` 及递归运行依赖、
+许可证和原生辅助资源复制到 `out/main/obsidian-mcpvault`，桌面打包时解包到
+`app.asar.unpacked`。运行时复用现有工具执行环境的 Node，不执行在线 npm 安装。
+生产组件自动化、Electron 托管 Node、Windows 设置与聊天 UI，以及受限网络下的
+Windows x64 解包应用已验证；物理断网、安装器及其他系统验收待完成。
+验证记录见 [Obsidian 进度](./docs/features/obsidian/progress.md)。
+
 ## 图标生成
 
 应用图标源文件位于 `icons`。修改源图或图标处理逻辑后运行：