Initial commit: CTmine-client (ContainerMine Client)

Docker-WebApp, die einen echten Minecraft Java-Client (Prism Launcher)
in einem Container mit virtuellem Display betreibt und per noVNC im
Browser anzeigt. Gedacht, um Accounts AFK an Farmen zu stellen.

- Multi-Stage Dockerfile: Vite/Vue-Build + Ubuntu-Runtime (Xvfb, x11vnc,
  websockify, noVNC, openbox, nginx, Prism Launcher 11.0.3)
- Vue 3 + Vite + TypeScript Dashboard (noVNC-iframe, Start/Stop,
  Status-Anzeige, Schnellstart-Anleitung)
- Node-Status-API ohne externe Dependencies (/api/status, /api/mc/*)
- docker-compose.yml mit PUID/PGID, konfigurierbarer Auflösung, shm_size
- Persistente Accounts/Instanzen in /config (Volume)

docker/nginx.conf

@@ -0,0 +1,66 @@
+# CTmine-client nginx-Konfiguration.
+# Liefert das gebaute Vue-Dashboard aus und proxyt API + VNC-WebSocket.
+
+user ctmine;
+worker_processes 1;
+pid /run/nginx.pid;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    access_log /dev/stdout;
+    error_log  /dev/stderr warn;
+
+    sendfile on;
+    keepalive_timeout 65;
+    client_max_body_size 4m;
+
+    server {
+        listen 8080 default_server;
+        listen [::]:8080 default_server;
+        server_name _;
+
+        root /var/www/ctmine;
+        index index.html;
+
+        # --- Vue SPA: Fallback auf index.html ---------------------------
+        location / {
+            try_files $uri $uri/ /index.html;
+        }
+
+        # --- noVNC-Webclient (vom novnc-Debian-Paket unter /usr/share/novnc) -
+        # Der VncViewer-iframe lädt /novnc/vnc.html und verbindet sich dann
+        # selbsttätig über /websockify (s.u.).
+        location /novnc/ {
+            alias /usr/share/novnc/;
+            try_files $uri $uri/ =404;
+        }
+
+        # --- Status-/Steuerungs-API → Node ------------------------------
+        location /api/ {
+            proxy_pass http://127.0.0.1:3000;
+            proxy_http_version 1.1;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        # --- VNC über WebSocket (websockify lauscht auf :6080) ----------
+        # Wichtig: Upgrade-Header weiterreichen, sonst kein WS-Handshake.
+        location /websockify {
+            proxy_pass http://127.0.0.1:6080;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_set_header Host $host;
+            proxy_read_timeout 3600s;
+            proxy_send_timeout 3600s;
+        }
+    }
+}