Fix pgAdmin routing issues by updating environment variables and middleware headers

docker-compose.yml

@@ -219,6 +219,8 @@ services:
       # Trust proxy headers
       PGADMIN_CONFIG_PROXY_X_HOST_COUNT: '1'
       PGADMIN_CONFIG_PROXY_X_PREFIX_COUNT: '1'
+      # Fix routing issues
+      SCRIPT_NAME: '/pgadmin4'
     volumes:
       - pgadmin_data:/var/lib/pgadmin
     labels:
@@ -226,5 +228,8 @@ services:
       - traefik.http.routers.pgadmin.rule=Host(`pgadmin.gate.${DOMAIN}`)
       - traefik.http.routers.pgadmin.entrypoints=websecure
       - traefik.http.routers.pgadmin.tls.certresolver=le
-      - traefik.http.routers.pgadmin.middlewares=security-headers
       - traefik.http.services.pgadmin.loadbalancer.server.port=80
+      # Add headers for proper proxy handling
+      - traefik.http.middlewares.pgadmin-headers.headers.customRequestHeaders.X-Script-Name=/pgadmin4
+      - traefik.http.middlewares.pgadmin-headers.headers.customRequestHeaders.X-Scheme=https
+      - traefik.http.routers.pgadmin.middlewares=pgadmin-headers