Update Dockerfile

Dockerfile

@@ -1,19 +1,30 @@
+# Kleap Auto-Generated Dockerfile
+# DO NOT use Nixpacks - it causes Docker buildx cache mount deadlocks
+# See coolify-deployer.ts for full explanation
+
 FROM node:22-alpine
 
 WORKDIR /app
 
-# Copy package files
+# Copy package files first (for better Docker layer caching)
 COPY package*.json ./
 
-# Install dependencies (no cache mount issues)
+# ╔═══════════════════════════════════════════════════════════════════════════╗
+# ║ CRITICAL: NO --mount=type=cache HERE!                                     ║
+# ║                                                                           ║
+# ║ Nixpacks generates: RUN --mount=type=cache,id=xxx,target=/root/.npm ...   ║
+# ║ This causes DEADLOCK on Coolify/Hetzner Docker buildx.                    ║
+# ║                                                                           ║
+# ║ We use simple RUN without cache mount = reliable builds every time.       ║
+# ╚═══════════════════════════════════════════════════════════════════════════╝
 RUN npm install --legacy-peer-deps
 
-# Copy source
+# Copy source code
 COPY . .
 
-# Build
+# Build the Next.js app
 RUN npm run build
 
-# Start
+# Expose port and start
 EXPOSE 3000
 CMD ["npm", "start"]