Agent Skills: code-orient

Entry-point skill for the codesmith implementation workflow. Detects dual mode (planning vs execution) from initial input shape — ticket reference → planning mode; bundle directory → execution mode. In planning mode: loads the `status: ready` ticket, scaffolds the implementation bundle via scaffold-implementation-bundle.py, transitions ticket status `ready → active`, and hands off to code-grill. In execution mode: loads the existing bundle (ticket + design + structure + plans + optional research), confirms preconditions, and hands off to code-implement. Detects PR mode vs local-only mode based on remote configuration and user confirmation.