feat(compose): add prod file and update app service

Introduce `compose.prod.yaml` for production deployment,
mapping standard HTTP and HTTPS ports for Traefik and using
the `ghcr.io/nethesis/ctiapp:latest` image in prod. Update
`compose.override.yaml` to build `app` locally via Dockerfile
while removing the old image reference from `compose.yaml`.

Author: Amygos

compose.override.yaml

@@ -3,3 +3,7 @@ services:
     ports:
       - "8080:80"     # HTTP on higher port
       - "8443:443"    # HTTPS on higher port
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile

compose.prod.yaml

@@ -0,0 +1,7 @@
+services:
+  traefik:
+    ports:
+      - "80:80"
+      - "443:443"
+  app:
+    image: ghcr.io/nethesis/ctiapp:latest

compose.yaml

@@ -37,7 +37,6 @@ services:
     restart: unless-stopped
 
   app:
-    image: ghcr.io/nethesis/ctiapp-authproxy:latest
     container_name: app
     networks:
       - app.network