Use ~/.pouch, the pouch CLI, and .pouch.yaml as the SSOT container.
Keep the inner skills/ packages, and store ACK project state in
.pouch/ack instead of docs/ack.
Replace install/uninstall with add/remove, add publish for git ops in
~/.skills, and resolve bin/skiff symlinks so commands work from any cwd.
Co-authored-by: Cursor <cursoragent@cursor.com>