Update Dockerfile

Dockerfile

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+# 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 first (for better Docker layer caching)
+COPY package*.json ./
+
+# ╔═══════════════════════════════════════════════════════════════════════════╗
+# ║ 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 code
+COPY . .
+
+# Build the Next.js app
+RUN npm run build
+
+# Expose port and start
+EXPOSE 3000
+CMD ["npm", "start"]