Add MongoDB reconnection logic on connection drop 🔄

[anoopcodehack]

Add MongoDB reconnection logic on connection drop 🔄

File: server/index.js

If MongoDB disconnects the server
just crashes silently 💀 fr!!

Fix: add reconnection handler:
mongoose.connection.on('disconnected', () => {
console.log('⚠️ MongoDB disconnected!
Attempting to reconnect...')
setTimeout(() => {
mongoose.connect(process.env.MONGO_URI)
}, 5000)
})

mongoose.connection.on('reconnected', () => {
console.log('✅ MongoDB reconnected!')
})

mongoose.connection.on('error', (err) => {
console.error('❌ MongoDB error:', err)
})

~12 lines! No frontend changes needed 🎯
Makes backend production ready!! 🔥