Remove pgAdmin from shared infra setup

Start without UI; pgAdmin can be added later as optional service.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

infra/README.md

@@ -24,8 +24,6 @@ Synology NAS
 
 ```bash
 sudo mkdir -p /volume2/docker/shared/pgdata
-sudo mkdir -p /volume2/docker/shared/pgadmin
-sudo chown -R 5050:5050 /volume2/docker/shared/pgadmin
 ```
 
 ### docker-compose.yml anlegen
@@ -49,18 +47,6 @@ services:
       interval: 5s
       timeout: 5s
       retries: 5
-
-  pgadmin:
-    image: dpage/pgadmin4:latest
-    restart: unless-stopped
-    ports:
-      - "5050:8080"
-    environment:
-      PGADMIN_DEFAULT_EMAIL: ${PGADMIN_EMAIL}
-      PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_PASSWORD}
-      PGADMIN_LISTEN_PORT: 8080
-    volumes:
-      - /volume2/docker/shared/pgadmin:/var/lib/pgadmin
 ```
 
 ### .env anlegen
@@ -69,8 +55,6 @@ Datei `/volume2/docker/shared/.env`:
 
 ```env
 POSTGRES_PASSWORD=<sicheres-passwort>
-PGADMIN_EMAIL=deine@email.de
-PGADMIN_PASSWORD=<pgadmin-passwort>
 ```
 
 ### Starten
@@ -154,7 +138,6 @@ sudo docker run -d \
 | Dienst | URL |
 |--------|-----|
 | Pamietnik App | `http://<NAS-IP>:9050` |
-| pgAdmin | `http://<NAS-IP>:5050` |
 | PostgreSQL | `psql -h <NAS-IP> -p 5433 -U pamietnik -d pamietnik` |
 
 ---