Add tree-sitter structural diff for code files#1982

SamMorrowDrums wants to merge 4 commits intosammorrowdrums/compare-file-contentsgithub/github-mcp-server:sammorrowdrums/compare-file-contentsfrom

sammorrowdrums/tree-sitter-semantic-diffgithub/github-mcp-server:sammorrowdrums/tree-sitter-semantic-diffCopy head branch name to clipboard