v0.17.1

• Ship the afdata binary full-featured: skill validate/install/status/uninstall, --help --output markdown, --version --output json, and --stdout-file/--stderr-file stream redirection are now wired into the binary itself
• Make the complete feature set the default so cargo install agent-first-data, Homebrew, and Scoop are all batteries-included and cargo add pulls every helper; consumers wanting only the core formatting/redaction/protocol surface opt out with default-features = false
• Fix the Windows release and CI Python venv provisioning to resolve the interpreter via Scripts/python.exe instead of a hardcoded bin/python, unbreaking the windows-latest test leg