f05a84d8ca
Refactors the contacts system from being embedded in cal_tool.py into a standalone contacts skill that serves as the single source of truth for recipient validation across all outbound email paths. - New skills/contacts/ skill: list, add, delete, resolve commands - New skills/himalaya/scripts/himalaya.sh wrapper: validates To/Cc/Bcc recipients against contacts for message send, template send, and message write commands; passes everything else through unchanged - cal_tool.py now delegates to contacts.py resolve instead of inline logic - TOOLS.md updated: agent should use himalaya wrapper, not raw himalaya