Add origin field to all skill files to track their source repository.
This enables users to identify where distributed skills originated from.
Fixesaffaan-m/everything-claude-code#246
Add a new skill that guides users through selective installation of
ECC skills and rules via AskUserQuestion. Clones the repo to /tmp,
lets users choose components and install level (user/project), verifies
path correctness, offers optimization, and cleans up on completion.
Co-authored-by: Hor1zonZzz <Hor1zonZzz@users.noreply.github.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>