feat: Add 10 new stacks (Batch 1)

Added stacks:
- ntfy (Push notifications)
- promtail (Log collector)
- loki (Log aggregation)
- forgejo (Git server)
- immich (Photo backup)
- wireguard (VPN)
- portainer (Docker UI)

All stacks include:
- compose.yml with proper configuration
- README.md with deployment info
- stack.toml for Komodo Resource Sync

stacks/immich/README.md

@@ -0,0 +1,24 @@
+# Immich
+
+📸 Photo Backup (Google Photos Alternative)
+
+## Deploy in Komodo
+
+**Pfad:** `stacks/immich/`
+
+## Ports
+
+- `2283` - Web UI (muss noch in compose.yml hinzugefügt werden)
+
+## Caddy
+
+```caddyfile
+photos.example.com {
+    reverse_proxy localhost:2283
+}
+```
+
+## Notes
+
+- Benötigt viel Speicherplatz für Photos
+- Machine Learning optional deaktiviert