delete(keep): remove empty .keep file from skills directory

refactor(config): move config files under developer and add symlink

refactor(developer): move golang skill under developer and update plugin config

refactor(developer): add skills and agents symlinks for plugin

refactor(git): restructure skills directory and add symlink for plugin

refactor(commands): restore subdirectory structure and add symlink for plugin

refactor(commands): flatten command files into commands/ with git-xxx naming

fix(commands): add frontmatter to all command files for slash command registration

refactor(git): split git commands into individual files for /shortcuts

feat(golang): add golang skill with rules, patterns, and commands

fix(git): update command path in plugin.json to point to the new git skills directory

feat(git): add git skill with commit conventions, workflow, and commands reference

chore: add .keep files to designer, developer, and pm directories to ensure they are tracked by Git

chore: add .keep file to agents/pm directory to ensure it is tracked by Git

chore: remove test plugin from marketplace.json, add design plugin configuration, and update developer plugin path