Modifications / 改动点

• This is NOT a breaking change. / 这不是一个破坏性变更。

Screenshots or Test Results / 运行截图或测试结果

Checklist / 检查清单

• 😊 If there are new features added in the PR, I have discussed it with the authors through issues/emails, etc.
  / 如果 PR 中有新加入的功能，已经通过 Issue / 邮件等方式和作者讨论过。

• 👀 My changes have been well-tested, and "Verification Steps" and "Screenshots" have been provided above.
  / 我的更改经过了良好的测试，并已在上方提供了“验证步骤”和“运行截图”。

• 🤓 I have ensured that no new dependencies are introduced, OR if new dependencies are introduced, they have been added to the appropriate locations in requirements.txt and pyproject.toml.
  / 我确保没有引入新依赖库，或者引入了新依赖库的同时将其添加到 requirements.txt 和 pyproject.toml 文件相应位置。

• 😮 My changes do not introduce malicious code.
  / 我的更改没有引入恶意代码。

Summary by Sourcery

Add filesystem tools for searching, reading, and editing files across local, sandbox, and Shipyard runtimes, with user-aware access restrictions and pagination support.

New Features:

• Introduce a read-file tool that supports offsets and limits for partial file reads.
• Introduce a file-edit tool that performs string replacements in files with optional replace-all behavior.
• Introduce a grep-style search tool for querying file contents using ripgrep or grep with context and result limiting.
• Add workspace path handling to scope filesystem operations per user/session.

Enhancements:

• Extend filesystem abstraction and booters (local, shipyard, shipyard_neo, boxlite) to support search and edit operations in addition to basic CRUD.
• Wire the new filesystem tools into local and sandbox toolsets so agents can use them alongside existing shell and Python tools.
• Relax local booter path restrictions while enforcing read-only directory restrictions at the tool level for non-admin users.

Build:

• Add python-ripgrep as a project dependency for content searching.