clawbio list iterates the static SKILLS dict in clawbio/cli.py, which only has entries for ~49 skills. The remaining ~41 skill directories under skills/ exist on disk with working Python scripts but aren't listed because they were never added to the registry.

Proposed fix: auto-discover skill directories for listing purposes, while keeping the static registry as the authority for run (flag allowlists, timeouts, etc.). Auto-discovered skills would show up in clawbio list with a visual indicator that they have minimal CLI support.