feat: optimize blog build and deployment

Dockerfile

@@ -2,12 +2,19 @@ FROM node:20-alpine AS build
 
 WORKDIR /app
 
+ARG ENCRYPT_PASSWORD
+ENV ENCRYPT_PASSWORD=$ENCRYPT_PASSWORD
+
 COPY package.json package-lock.json ./
-RUN npm ci
+RUN --mount=type=cache,target=/root/.npm npm install --include=optional
 
 COPY . .
 RUN npm run docs:build
 
-FROM nginx:1.25-alpine
+FROM nginx:1.27-alpine
 
 COPY --from=build /app/src/.vuepress/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
+  CMD wget -qO- http://127.0.0.1/ >/dev/null 2>&1 || exit 1