fix: adjust backend paths in docker-compose.dev.yml

docker-compose.dev.yml

@@ -21,14 +21,14 @@ services:
   backend:
     image: cosmtrek/air
     container_name: sim-backend-dev
-    working_dir: /app
+    working_dir: /app/backend
     ports:
       - "8522:8522"
     environment:
       - DB_URL=postgres://postgres:123@db:5432/saveinmed?sslmode=disable
       - PORT=8522
     volumes:
-      - ./backend:/app
+      - .:/app
     depends_on:
       db:
         condition: service_healthy