v1.2.0

What's New

• Remote Mac support: New make run-remote target for running the bot on a Mac accessed via SSH — handles macOS keychain unlock and tmux session management
• Python 3.11 minimum: Bumped minimum Python version from 3.10 to 3.11
• Setup docs: New "Running on a Remote Mac (SSH)" section covering keychain issues, workarounds, and tmux workflow