{"service":"Connection-Key Server","version":"1.0.0","endpoints":{"health":"GET /health","chat":"POST /api/chat","reading":"POST /api/reading/generate","chart":"POST /api/chart/calculate (NEW)","astro":"POST /api/astro/natal, GET /api/astro/transits/current, GET /api/astro/transits/month, POST /api/astro/transits/personal, POST /api/astro/synastry, POST /api/astro/solar-return","circle":"POST /api/circle/day (Mein Kreis)","matching":"POST /api/matching","stripe_webhook":"POST /api/stripe/webhook (public)","stripe_checkout":"POST /api/stripe/create-checkout-session","user":"GET /api/user/:userId"}}