Initial commit: Visigine (Vite client + Express/SQLite backend)

Container-ready via docker/ compose (frontend nginx + backend Node). Compose adjusted for Coolify on the prod server: frontend uses expose:80 (no host binding — host 8080 is taken by the Coolify proxy; Traefik routes visigine.de), backend ALLOWED_ORIGINS=https://visigine.de. Secrets stay in server/.env (git-ignored); see server/.env.example.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "visigine-server",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "node --watch index.js",
+    "start": "node index.js"
+  },
+  "dependencies": {
+    "better-sqlite3": "^12.10.0",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.5",
+    "express": "^4.21.0",
+    "express-rate-limit": "^7.4.0",
+    "jszip": "^3.10.1"
+  }
+}