docs: add planner-agent docs and session summary 2026-05-27
- services/planner-agent/README.md: full service doc (what it does,
LLM fallback chain, env vars, deploy steps, local run, redis-cli
end-to-end test, healthcheck)
- README.md: add Agent System section with all agents and their roles
- docs/sessions/2026-05-27-planner-agent.md: session summary (built
files, architectural decisions, problems + solutions, deployment
status, pending work)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Oskar Kapala
5ccdfa0ca6