feat: add support for smol runtime

[Vaiz]

No description provided.

[Copilot]

Pull Request Overview

This PR adds support for the Smol async runtime to the NFS3 client, enabling users to choose between Tokio and Smol runtimes based on their needs. The implementation follows the same pattern as the existing Tokio support by providing runtime-specific wrapper types and connector implementations.

Key changes:

• New SmolConnector and SmolIo wrapper types for Smol runtime integration
• Feature flag configuration to enable optional Smol support
• Documentation and examples demonstrating Smol usage

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
crates/nfs3_client/src/smol.rs	New module implementing Smol-specific IO wrappers and TCP connector
crates/nfs3_client/src/lib.rs	Exports the new smol module under feature flag
crates/nfs3_client/examples/nfs_smol.rs	Example demonstrating NFS client usage with Smol runtime
crates/nfs3_client/examples/nfs.rs	Updated with auth_unix credential usage and improved error formatting
crates/nfs3_client/README.md	Added documentation for both Tokio and Smol runtime usage
crates/nfs3_client/Cargo.toml	Added smol feature flag and dependencies
Cargo.toml	Added workspace-level smol and socket2 dependencies
.vscode/mcp.json	Added logging configuration for rust-mcp-server

Comments suppressed due to low confidence (1)