feat(workflows): align workflow CLI with extension command surface

Adds the missing workflow commands and flags so the workflow CLI
matches the extension/preset pattern: add --dev and --from, search
--author, update, enable and disable. Disabled workflows are blocked
from running and marked in list output.

Fixes #2342

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: marcelsafin