feat(arty): add git:config script to create .gitconfig.local

Prompts for name and email, writes [user] section to ~/.gitconfig.local
which is already included by .gitconfig.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

arty.yml

@@ -51,6 +51,11 @@ scripts:
   debian:install:libs: sudo apt install -y libffi-dev zlib1g-dev libyaml-dev libssl-dev liblzma-dev libbz2-dev libncurses-dev libreadline-dev libsqlite3-dev python3-tk tk-dev zstd
   debian:install:tools: sudo apt install -y imagemagick rsvg-convert ffmpeg yt-dlp shellcheck
   docker:install: curl -fsSL -o- https://get.docker.com | sudo sh && sudo usermod -aG docker $USER
+  git:config: |
+    printf 'Name: '  && read name
+    printf 'Email: ' && read email
+    printf '[user]\n\tname = %s\n\temail = %s\n' "$name" "$email" > ~/.gitconfig.local
+    echo "Written ~/.gitconfig.local"
   ssh:keygen: ssh-keygen -t ed25519 -C "$(git config --global --include user.email)"
   rust:install: curl https://sh.rustup.rs -sSf | sh -s -- --no-modify-path -y
   rust:install:tools: cargo install bat fd-find yazi-build