docs(deployment): update server setup guide with wizard.lu domain

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/deployment/hetzner-server-setup.md

@@ -353,7 +353,7 @@ Before setting up Caddy, point your domain's DNS to the server. In your domain r
 | AAAA | `flower` | `2a01:4f8:1c1a:b39c::1` | 300 |
 
 !!! tip "DNS propagation"
-    Set TTL to 300 (5 minutes) initially. DNS changes can take up to 24 hours to propagate globally, but usually complete within 30 minutes. Verify with: `dig api.yourdomain.com`
+    Set TTL to 300 (5 minutes) initially. DNS changes can take up to 24 hours to propagate globally, but usually complete within 30 minutes. Verify with: `dig api.wizard.lu`
 
 ## Step 14: Reverse Proxy with Caddy (TODO)
 
@@ -368,18 +368,18 @@ curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' \
 sudo apt update && sudo apt install caddy
 ```
 
-Configure `/etc/caddy/Caddyfile` (replace `yourdomain.com` with your actual domain):
+Configure `/etc/caddy/Caddyfile` (replace `wizard.lu` with your actual domain):
 
 ```caddy
-api.yourdomain.com {
+api.wizard.lu {
     reverse_proxy localhost:8001
 }
 
-git.yourdomain.com {
+git.wizard.lu {
     reverse_proxy localhost:3000
 }
 
-flower.yourdomain.com {
+flower.wizard.lu {
     reverse_proxy localhost:5555
 }
 ```
@@ -428,10 +428,10 @@ docker compose --profile full ps
 curl http://localhost:8001/health
 
 # Caddy proxy with SSL
-curl https://api.yourdomain.com/health
+curl https://api.wizard.lu/health
 
 # Gitea
-curl https://git.yourdomain.com
+curl https://git.wizard.lu
 ```
 
 ---
@@ -440,11 +440,11 @@ curl https://git.yourdomain.com
 
 | Service | Internal | External | Domain (via Caddy) |
 |---|---|---|---|
-| Wizamart API | 8000 | 8001 | `api.yourdomain.com` |
+| Wizamart API | 8000 | 8001 | `api.wizard.lu` |
 | PostgreSQL | 5432 | 5432 | (internal only) |
 | Redis | 6379 | 6380 | (internal only) |
-| Flower | 5555 | 5555 | `flower.yourdomain.com` |
-| Gitea | 3000 | 3000 | `git.yourdomain.com` |
+| Flower | 5555 | 5555 | `flower.wizard.lu` |
+| Gitea | 3000 | 3000 | `git.wizard.lu` |
 | Caddy | — | 80, 443 | (reverse proxy) |
 
 ## Directory Structure on Server