Generate context handoff and copy to clipboard for new session
# Handoff Context <objective> Generate a comprehensive context handoff for the current conversation that can be copied and pasted to continue work in a new session. </objective> <execution> Create handoff following the XML-structured format, save to timestamped temp file, copy to clipboard automatically. Show brief confirmation: `📋 Copied to clipboard` Do not ask for permission - execute immediately. </execution> <handoff-format> </handoff-format> <implementation> Get timestamp with `date +%s`, use Write tool to save to `/tmp/context_handoff_[timestamp].md`, run `pbcopy < /tmp/contex...