fix: update Dockerfile, application properties, and controller mappings for health check and CORS support

docker-compose.yml

@@ -22,7 +22,7 @@ services:
     build: ./backend
     container_name: todo-backend
     ports:
-      - "8082:8080"
+      - "8082:8082"
     environment:
       - SPRING_DATASOURCE_URL=jdbc:postgresql://db:5432/tododb
       - SPRING_DATASOURCE_USERNAME=postgres
@@ -31,7 +31,7 @@ services:
       db:
         condition: service_healthy
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:8080/actuator/health || exit 1"]
+      test: ["CMD-SHELL", "curl -f http://localhost:8082/api/actuator/health || exit 1"]
       interval: 10s
       timeout: 5s
       retries: 5        
@@ -43,7 +43,8 @@ services:
     ports:
       - "5173:80"
     depends_on:
-      - backend
+      backend:
+        condition: service_healthy
 
 
 volumes: