update dockerfile to bun

Dockerfile

@@ -1,15 +1,25 @@
+# ---------- Build-Stage ----------
 FROM node:22-alpine AS builder
 WORKDIR /app
+
+RUN apk add --no-cache curl \
+    && curl -fsSL https://bun.sh/install | bash \
+    && ln -s /root/.bun/bin/bun /usr/local/bin/bun
+
 COPY package*.json ./
-RUN npm ci --only=production
+RUN bun install
+
 COPY . .
-RUN npm install
-RUN npm run build
+RUN bun run build
 RUN ls -la dist/tools-website && ls -la dist/tools-website/browser
 
+# ---------- Runtime-Stage ----------
 FROM node:22-alpine
 WORKDIR /app
+
 RUN npm install -g serve@14
+
 COPY --from=builder /app/dist/tools-website ./dist/tools-website
+
 EXPOSE 3000
 CMD ["serve", "-s", "dist/tools-website/browser", "-l", "3000"]