feat: add YAML output format and -f shorthand for --format

feat: enhance CI workflows for multi-platform support and add Windows installation script

chore: remove progress.md file and update .gitignore to exclude it

docs: update README to clarify usage instructions and add dotnet run example

Add full platform matrix to CI verify-aot

Fix linux-arm64 build: use ARM64 runner instead of cross-compile

ci: update release workflow for install.sh compatibility

feat: LLM-optimized AST output with install script

Add tests, CI/CD with AOT builds and release provenance

Initial commit: C# AST generator for AI agents