Sync workspace with Gitea: merge June/July session docs

- README + siklos-docker-services: add authentik/searxng/beszel rows, photos VM section,
  2026-06-24 cleanup notes, 2026-07-03 Portainer conversion note (jgpc naming preserved)
- Add: authentik setup docs, frigate docs/config, OCIS migration docs, AdventureLog bug
  report, install-native-apps.sh, workstation-disk-analysis.md
- Remove obsolete: cgitta-nextcloud-zip-analysis.md, kopia-restore-guide.md
- .gitignore: ocis-credentials.md (secrets stay local), *.bak

siklos/beszel/docker-compose.yml

@@ -1,27 +0,0 @@
-services:
-  beszel:
-    image: henrygd/beszel:latest
-    container_name: beszel
-    restart: always
-    environment:
-      APP_URL: https://beszel.jgitta.com
-    ports:
-      - "8085:8090"
-    volumes:
-      - ./beszel_data:/beszel_data
-      - ./beszel_socket:/beszel_socket
-
-  beszel-agent:
-    image: henrygd/beszel-agent:latest
-    container_name: beszel-agent
-    restart: always
-    network_mode: host
-    volumes:
-      - ./beszel_agent_data:/var/lib/beszel-agent
-      - ./beszel_socket:/beszel_socket
-      - /var/run/docker.sock:/var/run/docker.sock:ro
-    environment:
-      LISTEN: /beszel_socket/beszel.sock
-      HUB_URL: http://localhost:8085
-      TOKEN: LNlfwOORlQXrfFFjFzjb7qCDZ4LVn-lECgkLmmwbyq8
-      KEY: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF3921TigvLCBlSDqgm1bIz2To1ONUT0ahXszPTxlngU"