v0.3

What's Changed

• Fix compilation and runtime ABI mismatch by @zhyg in #1
• Add automated testing for mapred by @zhyg in #2
• Fix compilation and abi mismatch 12571259654919333955 by @zhyg in #3
• docs: Add AI-generated project summary by @zhyg in #4
• Add AGENTS.md with development environment setup instructions by @zhyg in #5