- Add `tools.sandboxing` boolean flag to `settingsSchema.ts` to control whether tools are executed within a sandbox.
- Introduce `createSandboxManager` factory function that returns either `LocalSandboxManager` or `NoopSandboxManager` based on the new setting.
- Update `Config` initialization to read the setting and construct the appropriate sandbox manager.
- Update unit tests to reflect the new initialization and instantiation behavior.