feat(docker): add Docker support and enhance dashboard data

- Add Dockerfile and docker-compose.yml for containerized deployment
- Update server to listen on all network interfaces for Docker compatibility
- Add .dockerignore to exclude unnecessary files from build context
- Enhance dashboard controller with additional user data, trends, and suggestions
- Update package.json scripts for proper Docker build workflow

Dockerfile

@@ -0,0 +1,21 @@
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install build dependencies for native modules (sqlite3)
+RUN apk add --no-cache python3 make g++
+
+COPY package*.json ./
+
+RUN npm install
+
+COPY . .
+
+# Ensure data directory exists
+RUN mkdir -p data
+
+RUN npm run build
+
+EXPOSE 3000
+
+CMD ["npm", "start"]