chore: simplify docker-only deployment workflow

docker-compose.deploy.yml

@@ -0,0 +1,25 @@
+networks:
+  proxy:
+    name: proxy
+    external: true
+
+services:
+  pdf-to-ics-web:
+    image: ${PDF_TO_ICS_IMAGE:-ghcr.io/webfarben/pdf_to_ics:latest}
+    container_name: pdf-to-ics-web
+    restart: unless-stopped
+    ports:
+      - "8000:8000"
+    networks:
+      - proxy
+    environment:
+      - TZ=Europe/Berlin
+      # Optional aktivieren für App-Login:
+      - WEB_AUTH_USER=${WEB_AUTH_USER:-}
+      - WEB_AUTH_PASSWORD=${WEB_AUTH_PASSWORD:-}
+    healthcheck:
+      test: ["CMD", "python3", "-c", "import http.client,sys;c=http.client.HTTPConnection('127.0.0.1',8000,timeout=5);c.request('GET','/');r=c.getresponse();sys.exit(0 if r.status in (200,401) else 1)"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s