feat(admin): add analytics dashboard with charts and activity logs

[lakshiii08]

📊 Add Advanced Analytics Dashboard UI

Related Issue

Closes #<ISSUE_NUMBER>

Description

This PR introduces a modern Analytics Dashboard for the admin panel, providing visual insights into platform activity through interactive charts and real-time statistics.

✨ Features Added

Admin Analytics Dashboard

• Added a dedicated /analytics admin route
• Added Analytics navigation item in the admin sidebar
• Implemented a responsive dashboard layout using Tailwind CSS

Interactive Charts

• Integrated Recharts for data visualization
• Added User Growth Line Chart
• Added Weekly Activity Bar Chart

Analytics Metrics

• Total Users
• Active Users (estimated based on current available data)
• Total Orders
• Total Revenue

Recent Activity Section

• Displays recently registered users
• Shows registration dates for quick monitoring

Backend Analytics API

• Added GET /api/user/analytics

• Aggregates:

  • Total users
  • Total orders
  • Total revenue
  • Monthly user growth data
  • Recent user registrations

🛠 Technical Changes

Backend

• Added getAnalytics() controller
• Added analytics route in userRoutes.js
• Added MongoDB aggregation for monthly user growth
• Added revenue calculation using order amounts

Frontend

• Created Analytics.jsx
• Added Recharts integration
• Added responsive cards and charts
• Connected dashboard to live backend analytics data
• Updated admin routing
• Updated sidebar navigation

📱 Responsive Design

• Mobile-friendly layout
• Tablet optimized
• Desktop dashboard view
• Responsive chart containers

Screenshots

Analytics Dashboard

Testing Performed

• Dashboard route loads successfully
• Analytics API returns valid data
• Charts render correctly
• Sidebar navigation works
• Responsive layout verified
• Revenue and order metrics displayed
• No build errors

Future Improvements

• Track real active users using lastLogin
• Revenue trend analytics
• Order trend charts
• Date range filters
• Export analytics reports

[Nsanjayboruds]

@lakshiii08 please provide screensrecording