feat(sasch40): add retro birthday game subproject and k8s deployment

- Add Vue 3 + Vite + TypeScript retro game: 'Saschas Kronkorken Kreuzzug: 40 Jahre Bass & Gerstensaft'
- Add dynamic GameBoy layout: controls visible only during arcade modes, fullscreen during dialogue and tavern
- Add QR code welcome & prequel screen with lore, feature preview, and audio hints
- Add competitive party highscore and ranking breakdown on royal certificate
- Add dedicated individual 1:1 character portraits for Sascha, Verena, NAT, Hansi, Mop, Lutz, Armend, Amy, Mane, Pü, and Mario
- Add Dockerfile, Makefile, and K8s deployment at sasch40.haumdaucher.de
- Update openclaw timeout configuration

projects/sasch40/frontend/nginx.conf

@@ -0,0 +1,20 @@
+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # Cache static assets
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
+        expires 30d;
+        add_header Cache-Control "public, no-transform";
+    }
+}