Add Docker with MariaDB support

- Dockerfile now includes MariaDB server
- Add docker-entrypoint.sh to initialize DB, create user, and set permissions
- docker-compose.yml with configurable environment variables
- Nginx config proxies API to backend

Dockerfile

@@ -9,31 +9,48 @@ RUN npm ci
 COPY . .
 RUN npm run build
 
-# Stage 2: Backend + Nginx
+# Stage 2: Full stack with MariaDB
 FROM node:20-alpine
 
 WORKDIR /app
 
-COPY --from=builder /app/dist dist
+# Install MariaDB and nginx
+RUN apk add --no-cache mariadb mariadb-client mariadb-server-utils nginx
+
+# Initialize MariaDB data directory
+RUN mkdir -p /run/mysqld && \
+    chown -R mysql:mysql /run/mysqld && \
+    chown -R mysql:mysql /var/lib/mysql
+
+# Copy MariaDB config
+RUN sed -i 's/\[mysqld\]/[mysqld]\ncharacter-set-server=utf8mb4\ncollation-server=utf8mb4_unicode_ci/' /etc/my.cnf.d/mariadb.cnf || true
+
+# Copy built frontend
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Copy server files
 COPY server/package*.json server/
 RUN cd server && npm ci
 
-COPY server/server.js server/
-COPY server/db.js server/
-
-# Install nginx
-RUN apk add --no-cache nginx && mkdir -p /usr/share/nginx/html
+COPY server/ server/
 
 # Copy nginx config
 COPY nginx.conf /etc/nginx/http.d/default.conf
 
-# Create nginx directories
+# Create directories
 RUN mkdir -p /run/nginx
 
-# Copy built frontend to nginx html directory
-RUN cp -r dist/* /usr/share/nginx/html/
+# Copy entrypoint script
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
 
-EXPOSE 80 4000
+EXPOSE 80 4000 3306
 
-# Start both nginx and the backend
-CMD nginx && node server/server.js
+ENV DB_HOST=localhost
+ENV DB_PORT=3306
+ENV DB_USER=root
+ENV DB_PASSWORD=
+ENV DB_NAME=hospital
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["nginx.sh", "node", "server/api-mariadb.js"]