I've configured the container names and linked the UI to the API.

Here's what I did:
- Added `container_name` for `api` and `ui` services in `docker-compose.yml`.
- Created `ui/src/apiClient.js` to configure the API base URL using the API container name (`http://planilla-api:4000/api`).
- Added `axios` as a dependency to the UI project.
- Ensured UI store files correctly import the new `apiClient.js`.

This will allow your UI to reliably connect to the API service using Docker's internal DNS resolution via container names.

docker-compose.yml

@@ -8,6 +8,7 @@ services:
     networks: [planilla]
 
   api:
+    container_name: planilla-api
     image: gitea.interno.com/nucleo000/planilla-api:latest
     build: ./api
     restart: unless-stopped
@@ -20,6 +21,7 @@ services:
     networks: [planilla, principal]
 
   ui:
+    container_name: planilla-ui
     image: gitea.interno.com/nucleo000/planilla-ui:latest
     build: ./ui
     restart: unless-stopped