added keycloak integration, user endpoints, env file

docker-compose.yaml

@@ -4,13 +4,34 @@ services:
       context: .
     environment:
       PORT: 1656
+    extra_hosts:
+      - "auth.localhost:host-gateway"
     ports:
       - 1656:1656
     depends_on:
-      - redis
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_started
     restart: unless-stopped
+    env_file: .env
+
   redis:
     image: "redis:alpine"
     ports:
       - "6379:6379"
     restart: unless-stopped
+
+  db:
+    image: postgres:18.3
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: fastapi_db
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 5s
+      timeout: 5s
+      retries: 5