Agents own messaging, simplified auth and Docker setup

Self-managing auth: agent requests token via interface, stores in data volume

Use claude setup-token for headless auth (works over SSH)

Persist entire /root as volume so .claude.json survives container restarts

Fix auth: use -it for proper TTY so paste works in claude auth login

Fix auth: restore config backup, keep stdin open for code paste

Fix auth login: use -i flag so stdin passes through for code pasting

Fix setup.sh: override entrypoint for auth commands, grep status output

Fix headless auth: use claude auth login / setup-token instead of /login

Fix setup.sh: use exit code from claude auth status instead of grep/timeout

Initial commit: microagent personal assistant server