Post-login market data - Indian Market Trading Platform

Source: src/utils/zerodha/zerodhaPostLogin.ts

`handlePostZerodhaLogin()`

Called after successful Zerodha OAuth or auto-login:

ensureMarketDataRunning({ forceRestart: true })
Validates access token
restartMarketData() → starts ZerodhaEventProcessor
startFinacialInterval() — periodic position/financial push

Throws if market data fails to start.

`ensureMarketDataRunning(options?)`

Check	Action
No logged-in Zerodha doc	Return false, log warning
Already initialized (no force)	Skip restart
Invalid token	Return false
Otherwise	`restartMarketData()` + financial interval

`handleZerodhaDisconnect()`

On token invalidate / logout:

stopMarketData()
Stop financial interval
resetFinancialWebSocket()

Integration points

Zerodha controller after token generation
Header Disconnect → invalidate token → disconnect handler
Auto-login script on success