Initial commit: 23 docker stacks for GitOps deployment

Stacks included:
- Infrastructure: traefik, authentik, gitea, registry, watchtower, dockge
- Monitoring: smokeping, changedetection
- Apps: ghost, gollum, wallabag, radicale, invidious, xbackbone, filebrowser, syncthing, zerotier
- Custom: obsidian-tools, memento, perilous, ramz, bookclub, brain

🤖 Generated with Claude Code

stacks/syncthing/docker-compose.yml

@@ -0,0 +1,30 @@
+services:
+  syncthing:
+    image: lscr.io/linuxserver/syncthing:latest
+    container_name: syncthing
+    hostname: syncthing
+    restart: unless-stopped
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - TZ=America/New_York
+    volumes:
+      - ./config:/config
+      - ./data:/data
+    ports:
+      - "8384:8384"
+      - "22000:22000/tcp"
+      - "22000:22000/udp"
+      - "21027:21027/udp"
+    networks:
+      - web
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.syncthing.entrypoints=https"
+      - "traefik.http.routers.syncthing.rule=Host(`syncthing.${DOMAIN}`)"
+      - "traefik.http.routers.syncthing.tls.certresolver=http"
+      - "traefik.http.services.syncthing.loadbalancer.server.port=8384"
+
+networks:
+  web:
+    external: true