Sync infra config: HA/Zabbix relocation, Immich storage move, new services

Accumulated uncommitted infra changes:
- Caddyfile: repoint HA/Zabbix to 192.168.1.4/.3, add ~20 new site routes
- Immich: move media to /mnt/smsg, enable CUDA ML, mem limits, rewrite backup.sh
- Add service stacks: agap-mcp, anki, family, freshrss, iperf3, kanboard,
  linkwarden, qbittorrent, radicale, syncthing, vikunja, windows
- openwebui: enable API keys; ollama: drop CPU fallback
- seafile/zabbix: extra_hosts entries; matrix: add user juris
- Remove pihole stack and stale wiki/migrate.py
- Ignore marketplace-mcp (standalone repo) and linkwarden runtime data

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LeqyaxJF2nbRXJtae2kNB2

ollama/docker-compose.yml

@@ -16,12 +16,3 @@ services:
       - OLLAMA_NUM_GPU=999
     runtime: nvidia
     mem_limit: 4g
-
-  ollama-cpu:
-    image: ollama/ollama
-    container_name: ollama-cpu
-    ports:
-      - "11435:11434"
-    volumes:
-      - /mnt/ssd/ai/ollama-cpu:/root/.ollama
-    restart: always