ci: validate Caddyfile with real caddy binary instead of naive brace count

.github/workflows/caddy-deploy.yml

@@ -27,6 +27,14 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
+      - name: Validate Caddyfile syntax
+        run: |
+          # Real Caddy parser (better than naive brace counting)
+          curl -fsSL https://caddyserver.com/api/download?os=linux\&arch=amd64 -o /tmp/caddy
+          chmod +x /tmp/caddy
+          /tmp/caddy validate --config infra/caddy/Caddyfile.prod --adapter caddyfile 2>&1 | tail -5
+          echo "✅ Caddyfile valid"
+
       - name: Setup SSH key
         env:
           SSH_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
@@ -38,15 +46,6 @@ jobs:
           ssh-keygen -y -f ~/.ssh/id_ed25519 >/dev/null 2>&1 || { echo "SSH key invalid"; exit 1; }
           ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts 2>/dev/null
 
-      - name: Validate Caddyfile syntax
-        run: |
-          # Basic sanity: no obviously empty file, brace count balanced
-          test -s infra/caddy/Caddyfile.prod || { echo "Caddyfile.prod missing/empty"; exit 1; }
-          opens=$(grep -c '{' infra/caddy/Caddyfile.prod || true)
-          closes=$(grep -c '}' infra/caddy/Caddyfile.prod || true)
-          echo "braces open=$opens close=$closes"
-          [ "$opens" = "$closes" ] || { echo "unbalanced braces"; exit 1; }
-
       - name: Sync Caddyfile to VPS
         run: |
           set -e
@@ -68,7 +67,6 @@ jobs:
           for u in hub.asepharyana.my.id scraper.asepharyana.my.id tools.asepharyana.my.id wiki.asepharyana.my.id upload.asepharyana.my.id ai.asepharyana.my.id; do
             code=$(curl -s -o /dev/null -w '%{http_code}' --max-time 10 "https://$u/" || true)
             echo "$u -> $code"
-            # 000/000 means route didn't answer; 404 on root is fine for API-first apps
             case "$code" in
               000|502|503|504) echo "::error::$u bad status $code"; exit 1 ;;
             esac