wired PySwiss microservice deployment: env-driven settings, gunicorn pinned, PYSWISS_URL in main settings, test-pyswiss CI stage

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/core/settings.py

@@ -221,6 +221,9 @@ MAILGUN_DOMAIN = "howdy.earthmanrpg.com" # Your Mailgun domain
 STRIPE_PUBLISHABLE_KEY = os.environ.get("STRIPE_PUBLISHABLE_KEY", "")
 STRIPE_SECRET_KEY = os.environ.get("STRIPE_SECRET_KEY", "")
 
+# PySwiss ephemeris microservice
+PYSWISS_URL = os.environ.get("PYSWISS_URL", "http://127.0.0.1:8001")
+
 if 'test' in sys.argv:
     import shutil
     _cache_dir = BASE_DIR / 'static' / 'CACHE'