fix(gateway): CORS, memory userId from session, pgvector auto-init (#110)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

docker-compose.yml

@@ -9,6 +9,7 @@ services:
       POSTGRES_DB: mosaic
     volumes:
       - pg_data:/var/lib/postgresql/data
+      - ./infra/pg-init:/docker-entrypoint-initdb.d:ro
     healthcheck:
       test: ['CMD-SHELL', 'pg_isready -U mosaic']
       interval: 5s