854ae41f65
Round out the pi bring-up story so a fresh machine can reach a working pi+mempalace install with just `git clone && ./install.sh`: - extensions/pi/keybindings.json: generic mosh/tmux newline fix (shift+enter, ctrl+j, alt+j). Safe on any machine — not region/account-specific. Symlinked into ~/.pi/agent/. - extensions/pi/settings.example.json: template for `settings.json` so pi can start without --provider/--model. NOT symlinked — pi rewrites settings.json at runtime (lastChangelogVersion bumps), which would dirty the repo. Installer prints the cp + edit hint. - install.sh: new install_pi_keybindings + uninstall mirror; new check_pi_settings probe (warns if settings.json missing); new check_aws_env probe (warns if AWS_PROFILE/AWS_REGION unset and settings.json selects amazon-bedrock). All new steps gated on pi being installed (~/.pi/agent/extensions/ exists). - extensions/pi/README.md: documents keybindings rationale, settings bootstrap, and the recommended ~/.config/pi/.env + ~/.oh-my-zsh/custom/pi-env.zsh env layout (paired with the myconfigs commit 884e329 that split AWS vars out of ~/.config/opencode/.env). Verified on tor-ms22: full install → uninstall → reinstall cycle, new shell loads AWS_PROFILE/AWS_REGION from the new pi-env.zsh hook. Works on macOS and Linux (plain ln -s, POSIX bash).