bump version to v0.1.1

[SF-Zhou]

1. add read_exact option

[Copilot]

Pull request overview

This PR bumps the version to v0.1.1 and introduces a new read_exact option that allows users to control whether reads must fill the entire buffer or can be partial.

Changes:

• Added read_exact boolean field to Options struct with a builder method with_read_exact()
• Implemented read_exact logic in both fallback read path (using read_exact_at) and device read path (with validation)
• Updated version numbers in Cargo.toml and Cargo.lock from 0.1.0 to 0.1.1

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
Cargo.toml	Version bump from 0.1.0 to 0.1.1
Cargo.lock	Version bump from 0.1.0 to 0.1.1
src/options.rs	Added read_exact field with documentation, default value, and builder method
src/reader.rs	Implemented read_exact logic in both fallback and device read paths with appropriate error handling

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.